Products and technical information Surface protection for concrete. Transparent. Opaque. Colored. www.obtego.com 01/2022
CONTENTS ABOUT US Who we are and what we do ......................page 04 OBTEGO Products Construction chemistry Surface preparation ......................page 08 Pretreatment ......................page 12 Special Impregnators ......................page 16 Dyes ......................page 24 Cleaning and Maintenance ......................page 26 Application Equipment Application tools ......................page 31 Cleaning- and Diamond pads ......................page 35 Others Service & Seminars ......................page 37 TECHNICAL INFORMATION Guideline for professional use and application ......................page 40 About silicates and OBTEGO silicate portfolio ......................page 44 Surface protection ......................page 50 Concrete refurbishment ......................page 61 Contact How you can contact us ......................page 67 3
Whowe are andwhatwe do OBTEGO AG is a developer and manufacturer of high-quality, wet-chemical surface protection solutions for for mineral substrates, in particular cementitious surfaces (concrete, screed, terrazzo, levelling compounds etc.). Core competences The company’s core competence is in developing and adapting surface protection for cementitious floors. Our focus is on developing each surface protection product to the surface to be treated. Innovative From the very outset, we put new surfaces through rigorous testing in order to select the most suitable OBTEGO system. In addition to sample slabs, we also produce large-area, mock-up surfaces to serve ultimately as field trials, which are also supported by theOBTEGOApplications Engineering division. Products Our products clean, protect, maintain and enhance, always adapted precisely to the respective substrate andwith many possibilities to satisfy your needs. So, if you are looking for solutions for protecting your flooring against general grime and stains, for example, or if you wish to give your surfaces a high-quality, permanent shine, then you are in good handswithOBTEGOAG. 4
OBTEGO stands for hight quality protection Research andDevelopment To always develop the highest quality and most suitable product is the goal of our research and development. Warehousing Due to our warehousing we can also react to short-term customer requests and ensure a seamless supply. Production Our products are Made in Germany. We produce directly at the company location in Altheim, Essenbach. This ensures a smooth exchange between research and development, application technology and production. Application technology We support our customers individually in selecting the right products for the surface to be treated. You can also count on our technical advice during the project. Seminars In order to be able to use OBTEGO products correctly, we organise seminars at our company location at regular intervals. The participants receive thereby an overviewof the different surface protection systems and solutions of the OBTEGO AG and see on the basis of practical demo surfaces their successful conversion. 5
OBTEGO Products
Surface preparation The OBTEGO SP-Series contains products for surface preparation. All products of this series are optimally adapted for all subsequent OBTEGOproducts. As always, OBTEGO uses high-quality raw materials with a high content of agents in its surface preparation products.
OBTEGOSP-100 Liquid compoundbasedon various silicates and polymers. OBTEGO SP-100 is used together with grinding dust, as pore filler for grinded floors and screeds to close the pores and holeswith amaximumsize of 4-5mm. BEFORE AFTER 9 Packaging Unit Item Number OBTEGO SP-100 9 liter 10200001
OBTEGOX-100 Low viscosity primer for OBTEGO X-200 (joint filler) and X-300 (mortar). Prime coat for better adhesion onmineral substrates. 2-component-MMA (methyl methacrylate) OBTEGOX series includes products for renovation and surface preparation. Products from the OBTEGO X series are used e.g. for small repair work, for closing larger cracks, boreholes and breakouts or for jointing and sealing of cementitious flooring. The advantage of the products is in the wide range of temperature application as well as in the fast curing. Therefore, the surface is faster ready for a further processing or use of the floor. OBTEGOX-200 Highly elastic, modified methacrylate resin for jointing and sealing of mineral surfaces. Ensures a permanent elasticity and a better absorption of undergroundmovements. Suitable for indoor and outdoor surfaces. OBTEGOX-300 OBTEGO X-300 is a solvent-free 2-component methacrylate resin mortar with high compressive and bending tensile strength. It is characterized by very low linear shrinkage. Themortar is best for repair work and backfilling for holes. Due to its high strength, themortar is suitable also as awear-resistant concrete coating for arising leveling and repair work for layer thicknesses of 6 - 25mm. Packaging Unit Item Number OBTEGOX-100(A) Resin (Primer) 5 kg 10200003 OBTEGOX-100/200 (B) Hardener 1 kg 10200002 Packaging Unit Item Number OBTEGOX-200(A) Resin (joint filler) 10 kg 10200004 OBTEGOX-100/200 (B) Hardener 1 kg 10200002 Packaging Unit Item Number OBTEGOX-300(A) Powder (mortar) 15 kg 10200005 OBTEGOX-300(B) Hardener 2 liter 10200006 11
OBTEGO X-300 BEFORE AFTER OBTEGO X-200 BEFORE AFTER
Pretreatment The OBTEGO P-Series contains products for surface pretreatment. Those products can work as pre-impregnation, primer or functional product and improve the surface properties. Pretreatments are often an important component of a goodworkingOBTEGO system. Products of OBTEGO P-Series generally used with subsequent OBTEGO special impregnators in a system application. All pretreatment products are optimally adapted for OBTEGOR-Serie products. As always, OBTEGO uses high-quality raw materials with a high content of active agents in its pretreatment products.
OBTEGOP-2 Highly reactive lithiumsilicate. Concrete densifier and surface hardener (Lithium silicate). Silicate with high active ingredient content for surface hardening of concrete floors (dust-binding). OBTEGOP-3 Highly reactive blendof potassium- and lithiumsilicate. Concrete densifier and surface hardener (Potassium-Lithium silicate). Silicate blend with high active ingredient content for hardening of concrete surfaces (dust-binding). 13 Packaging Unit Item Number OBTEGO P-2 20 liter 10250013 OBTEGO P-2 1000 liter 10250012 Packaging Unit Item Number OBTEGO P-3 20 liter 10250016 OBTEGO P-3 200 liter 10250014 OBTEGO P-3 1000 liter 10250015 OBTEGOP-5 Highly reactive lithiumsilicatewith integrated basic protection and gloss effect. Concrete densifier and hardener with gloss effect and surface protection (Lithium silicate). Silicate with high active ingredient content for hardening of concrete surfaces (dust-binding). Reduce the capillary water absorption and increase the gloss level. Packaging Unit Item Number OBTEGO P-5 20 liter 10250020 OBTEGO P-5 200 liter 10250018 OBTEGO P-5 1000 liter 10250019
OBTEGOP-20/OBTEGOP-20 nV Waterborne pretreatment with a acrylic co-polymer, very good pore filler properties and a water repellent effect. Pretreatment for application on highly absorbing, Power trowelled or coarse grinded surfaces. Reduces the consumption of OBTEGO R-400, delivers a basic protection against light acids and reduces an unwanted color intensifying effectively. UsingOBTEGOR-400 onmastic asphalt, useOBTEGOP-20 nV as a pretreatment. OBTEGOP-10 Waterborne pretreatment (impregnation) based on a fluorocarbon oligomerwhich gives an excellentwaterand oil repellent effect. Pretreatment for application on absorbing, highly grinded or polished surfaces. Reduces the consumption of OBTEGOR-400 and also reduces an unwanted color intensifying. 15 Packaging Unit Item Number OBTEGO P-20 10 liter 10250024 OBTEGO P-20 nV 10 liter 10250023 Packaging Unit Item Number OBTEGO P-10 10 liter 10250021
Special Impregnators TheOBTEGOR-Series contains different high-end products for the protection of cementitious surfaces. Our product range suffieces froma economic to a premiumprotection. OBTEGO special imprgnators can be find in various industrial environments such as production and logistics areas, central markets, shoppingmalls andmuchmore. OBTEGOAGuses high quality rawmaterials and a high content of active agents in its products.
OBTEGOR-30 Highly reactive hybrid silicatewith a basic protection against stains. OBTEGO R-30 causes a silicate of concrete surfaces and penetrates deep into the surface. The hybrid-silica also reduces the penetration of liquids and dirt. The water absorption is reduced, the surface diffusion remains open. Surfaces are easier to clean and the gloss is also increasing. The following properties are the characteristics of the surfaces after the treatment with OBTEGOR-30: Improved abrasion resistance, dust-free, impermeable andmore resistance, no or only a slight color deepening. 15 UNTREATED TREATED Packaging Unit Item Number OBTEGO R-30 20 liter 10300003 OBTEGO R-30 200 liter 10300001 OBTEGO R-30 1000 liter 10300002
OBTEGOR-40 Pigmented 2-Component LithiumSilicate-Based Special Impregnating Sealer. Given the pigmented surface refinement, OBTEGO R-40 is excellently suited to use on new, uneven concrete surfaces or old flooring. OBTEGO R-40 penetrates into the surface, where it reacts with the substrate to form a solid unit. The product protects the surface against the penetration of aqueous liquids, oils, greases and general grime. The following properties are the characteristics of the surfaces after the treatment with OBTEGO R-40: Improved wear resistance, dust-free, more waterproof and more resilient. Further advantages over EP or PU coatings are theminerality and the diffusion-openness. only on request: platinium gray (based on RAL 7036) stone gray (based on RAL 7030) mouse gray (based on RAL 7005) slate gray (based on RAL 7015) 19 Packaging Unit Item Number OBTEGO R-40 platinium gray, 2K 18,7 kg 10300010 OBTEGO R-40 slate gray, 2K 18,7 kg 10300008 Packaging Unit Item Number OBTEGO R-40 mouse gray, 2K (special color from 300 kg) 18,7 kg 10300009 OBTEGO R-40 stone gray, 2K (special color from 300 kg) 18,7 kg 10300011 OBTEGO R-40 componente B 0,37 kg 10300013
AFTER BEFORE
OBTEGOR-50 Waterborne protective sealer for concrete floors. OBTEGO R-50 reduces the penetration of aqueous liquids, grease, oils and other dirt. The product is easy to apply and imparts high gloss when burnished. The effectiveness depends on thematerial and absorption of the surface. Depending on the material and surface treatment, it can also lead to different results in the resistance of stain protection. Packaging Unit Item Number OBTEGO R-50 10 liter 10300004
OBTEGOR-400 Solvent-borne, silane-based special sealerwith an excellentwater and oil repellent effect. OBTEGO R-400 reduces the penetration of aqueous liquids, grease, oils, and other dirt. The product penetrates deep into the surface and causes a color deepening. The water absorption is strongly reduced, while the water vapor permeability is onlymarginally affected. The active ingredients areUV-resistant and non-yellowing. UNTREATED TREATED Packaging Unit Item Number OBTEGO R-400 10 liter 10300007
Dyes In addition to products for surface preperation, pretreatments and special imprgnators, OBTEGO AG offers also concrete dyes for a subsequently coloring of cementitious surfaces. An uniform wetting of the surface ensures a homogeneous appearance. TheOBTEGOconcrete dyes are optimally adapted for the impregnations of theOBTEGOR-Series. Sand Blue Black Golden yellow Orange Turquoise Brown Terracotta Red Green Gray
OBTEGOConcreteDye Dye for subsequent coloring of cementitious surfaces. The product was especially developed for diamond-polished concrete and is designated for interior use. It penetrates deep into the surface and forms a bond with the concrete. Concrete Dye is part of a system with OBTEGO silicates and impregnators. A uniform wetting of the surface ensures a homogeneous appearance. The product effects like a glaze. Structures or aggregates are still visible and are not covered aswith a paint. Packaging Unit Item Number OBTEGO Concrete Dye Blue 10 liter 10250001 OBTEGO Concrete Dye Brown 10 liter 10250002 OBTEGO Concrete Dye Golden yellow 10 liter 10250003 OBTEGO Concrete Dye Gray 10 liter 10250004 OBTEGO Concrete Dye Green 10 liter 10250005 OBTEGO Concrete Dye Orange 10 liter 10250006 OBTEGO Concrete Dye Red 10 liter 10250007 OBTEGO Concrete Dye Sand 10 liter 10250008 OBTEGO Concrete Dye Black 10 liter 10250009 OBTEGO Concrete Dye Terracotta 10 liter 10250010 OBTEGO Concrete Dye Turquoise 10 liter 10250011
Cleaning andMaintenance OBTEGOC-Series products are strippers and cleaners for routine cleaning of water-resistant surfaces and flooring, designed for professional use in a wide range of applications. It also includes maintenance liquids for industrial environments aswell as general cementitious flooring. OBTEGO AG uses very economical and high quality raw materials in ist and cleaning maintenance products. The surfactants used are 98%biodegradable.
OBTEGOC-10 Alkaline, solvent-free basic cleanerwith an optimal tuned combinationof various cleaning components. OBTEGO C-10 is excellently suitable for the basic cleaning of stongly stressed, soiled surfaces. The product dissolves and removes slightly oil and grease soilings, residues of floor care andmaintenance products, slight wax films, and general soilings. OBTEGOC-100 Neutral cleanerwith an optimal tuned combinationof various cleaning components. OBTEGO C-100 dissolves and removes slight soilings and is used for the manual and machine maintenance cleaning. The cleaner dries up streak-free. OBTEGOC-105 Slightly alkaline, solvent-free cleaner concentrate for industrial floors with an optimal tuned combination of various cleaning components, which is especially suitable for the applicationwith auto-scrubbers. OBTEGOC-105 dissolves and removes slightly oil and grease soiling, abrasion fromrubber, and general soiling. 27 Packaging Unit Item Number OBTEGO C-10 10 liter 10150001 Packaging Unit Item Number OBTEGO C-100 10 liter 10150002 OBTEGO C-100 (Karton) 12 x 1 liter 10150003 Packaging Unit Item Number OBTEGO C-105 10 liter 10150004
OBTEGOC-200 Maintenance liquid with a perfectly balanced combination of different detergents, impregnation agents and waxes for already impregnated floors. OBTEGOC-200 dissolves and removes slightly impurities and is used for floormaintenance care. Themaintenance liquid is used formanually application. OBTEGOC-205 Highly reactive maintenance liquid with a perfectly balanced combination of cleaning agents, impregnation agents and silicates for industrial concrete floor coverings. OBTEGO C-205 removes slight impurities and is used as maintenance cleaning on already treated OBTEGO floors. Furthermore the product refreshes the OBTEGO treatment through the containing impregnating agents and silicates. Through the application of the product, even the gloss is increasing. The maintenance liquid is used formanually application, aswell as for usewith auto scrubbermachines. OBTEGOC-240 Lipid replenishing maintenance liquid with a perfectly balanced combination of different detergents, impregnation agents andwaxes for already impregnated floors. Main use of the product is for surfaces, which are treated with OBTEGO R-40. OBTEGO C-240 removes slightly impurities and is used for floor maintenance. The maintenance liquid is used for manually application, as well as for usewith auto scrubbermachines. 29 Packaging Unit Item Number OBTEGO C-200 10 liter 10150005 OBTEGO C-200 (Karton) 12 x 1 liter 10150006 Packaging Unit Item Number OBTEGO C-205 20 liter 10150007 Packaging Unit Item Number OBTEGO C-240 10 liter 10150008 OBTEGO C-240 (Karton) 12 x 1 liter 10150009
Application tools 31 Product Description Item Number pump sprayer, 5 liter For application of OBTEGO products from R-Series and PSeries incl. one nozzle 0,1 orange 25100005 pump sprayer, 1,5 liter For application of OBTEGO products from R-Series and PSeries incl. one nozzle 0,2 yellow 25100006 Nozzle for pump sprayer (set 5 pcs.) Various nozzles for professional spraying of OBTEGO products from R-Series and P-Series orange yellow blue 25100001 25100002 25100003 Aluminium-Stick for Quick Connect holder Professional handle for use with Quick Connect holder; Length 147 cm 25100008 Telescope stick Extendable stick, for roller holder 25100009 Quick-Connect holder Special Velcro holder for microfiber finish mop Size 40 cm Size 60 cm 25100010 25100017 Microfiber Finish Mop Necessary for homogenization of OBTEGO products from R-Series Size 40 cm: 1 PU (10 pcs.) Size 60 cm: 1 PU (5 pcs.) 25100011 25100018 bracket for large area roller (500 mm) Professional bracket to connect to large area roller 500 mm 25100012 Large area roller (500 mm) For homogenization of OBTEGO products from P-Series 25100013
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33 Product Description Item Number bracket for small roller (150 mm) Professional bracket to connect to small roller 150mm 25100014 Small roller (150mm) For homogenization of OBTEGO products from P-Series on small areas, edges, steps etc. 25100015 Spout For easier filling in pump sprayer or other container for 10 liter canister for 20 liter canister 25100019 25100028 Ethyl Alcohol – Solution (denatured) For cleaning of the pump sprayer, which had been used with OBTEGOR-400 10 liter 25150001 Special thinner Thinner for OBTEGOconcrete dye 10 liter 25150002 Area roller (250 mm) For the application of OBTEGOR-40 25100020 Bracket for area roller (250 mm) For the application of OBTEGOR-40 25100021 Galvanized paint grid (30 cm x 26 cm) With handle for rollers up to 250mm 25100022
Cleaning- andDiamondpads Product Description Item Number Buffing pad / Superpad Suitable for single disc low speed machine which 17 inch diameter. Necessary to buff/polish of OBTEGO products from R-Series. 1 PU (5 pcs.) 25100016 Diamond pads Suitable for single disc low speed machine which 17 inch diameter. Depending on grit size suitable for different applications. Ideal for lighter surface preparations and cleaning without detergents (chemicals) or for maintenance of OBTEGO treated floors. Diamond pad 17" green (grit 220) For cleaning and surface preparation of strongly soiled concrete floors and screeds. Abrasive pad to remove stubborn dirt. 25100023 Diamond pad 17" pink (grit 400) For cleaning and surface preparation of soiled concrete floors and screeds. Also usable for cleaning of industrial porcelain stone ware tiles. 25100024 Diamond pad 17" beige (grit 800) For cleaning and surface preparation of Terrazzo, artificial stone, marble and other natural stone. Also as next step after using 400 grit pad. 25100025 Diamond pad 17" yellow (grit 1800) Normally used as next and last step after 800 grit pad. This pad is also suitable for occasionally use to maintain concrete floors, but it should be not used permanent on OBTEGO treated surfaces. (Requires surface preparation with 400 and 800 grit pad). 25100026 Diamond pad 17" white (grit 3000) Buffing pad for daily maintaining and buffing of polished concrete, artificial stone and natural stones. Provide also best possible gloss after surface preparation. If applicable use dry with high speed burnisher. 25100027 35
37 Service and Seminars Product Description On-site training or mock-up sample in Germany We make together with you a mock-up sample on the job-site in order to convince your customer of the OBTEGO-benefits or instruct your employees on the construction-site how to work with the OBTEGO products (max. 1 day). So we would like to ensure that the customer is satisfied with the performance in your first OBTEGO project. On-site training or mock-up sample in Europe We make together with you a mock-up sample on the job-site in order to convince your customer of the OBTEGO-benefits or instruct your employees on the construction-site how to work with the OBTEGO products (max. 1 day). So we would like to ensure that the customer is satisfied with the performance in your first OBTEGO project. OBTEGO Training Seminar Seminar and training of OBTEGO product application on different floor substrates at the OBTEGO facility. Contents, dates and prices at www.obtego.com-> in the "News" or on request.
Technical information
40 Guideline for professional use and application Inspectionof the floor surface Before starting any impregnation, it is essential to check whether the substrate itself is suitable for the intended use and if the surface is suitable for the treatment with OBTEGO products. If this is not the case, an afterwards impregnation does notmake really sense. Themain points to be checked are: Quality of the floor surface: The quality of the floor surface should have a compressive strength of at least 25 N/mm² (3.600 PSI). However, not only the compressive strength is an important point but also the scratch resistance/hardness of the surface. If scratching with a knife or a key causes scratches in the floor, or if finest aggregates break out, the floor surface is usually not suitable for any impregnation ormust be densified/hardenedwith silicates so far possible. Impregnation of new/fresh floor surfaces: Before a new floor surface can be impregnated, it is essential to determine its residual moisture. The maximum value can be found in the technical data sheet for the products used and it is usually ≤ 4% CM. Since a CM measurement is destructive, inmost cases electronicmeasuring devices such as capacitivemoisturemeters used. The company TRAMEX or TROTEC have proven themselves here. In some circumstances and due to remaining pore water, the floor surface cannot absorb the impregnation completely, evenly and sufficiently if the residual moisture is too high. This can lead to cloud formation, efflorescence or even limited functionality of the impregnation. Cleaning or diamond cleaning Before applying any treatment or surface protection, the floor surface must be at least washed several times with an auto-scrubber machine and suitable cleaning pads. An effective cleaning is necessary to remove superficial impurities, efflorescence, cement slurry, etc. If a cleaning just with auto-scrubber is not sufficient enough, it is recommended to use diamond cleaning pads or make a soft grinding/polishing step with resin bond diamond tools with grit # 100 or # 200 in order to remove e.g. marks from plastic foil (concrete curing), marks from power trowelling and slight roughness depth , for example. A diamond cleaning step with a grinding machine (not a single-disc machine) usually makes the floor surface even more appealingly. In both cases, the floor surface must be washed wet several times with an auto-scrubber machine after the grinding/polishing step. Just to use a vacuuming cleaner (dust extractor) after the grinding/polishing step to remove the dust from the surface (if dry grinding/polishing) and afterwardswet wipingwith amop is not sufficient enough. After cleaning process, the surface must be dry completely. Even after cleaning, the residual moisture must be controlled again before the impregnation can be applied. Pre-treatment (optional) If the floor surface shows cavities or larger pores, these must be closed before applying any impregnation. OBTEGO X-300 (repair mortar) is suitable to close breakouts or cavities. OBTEGO SP-100 pore filler can be used for pores up to a size of approx. 5mm.
In case of a highly absorbent surface or a floor which has a poor scratch resistance/hardness, a pretreatment with an OBTEGO silicate is required. The strength of a soft, cementitious surface can thus be increased and at the same time the absorption can be reduced. However, if the floor is of a very poor quality, the treatment with a silicate does not lead to a 100% suitable surface, but certainly to an improvement. Our pre-treatments OBTEGO P-10 and P-20 (or P-20 n.V.) are suitable for reducing the absorption of the floor surface. Those pre-treatments also reduce a color deepening (color enhancement); e.g. if an afterwards application of OBTEGOR-400 is planned. Note: With floor heating, activate heating program (up- and down heading of floor) before applying any impregnation or protection system, otherwise possible residual moisture in the floor could lead to undesirable efflorescence or even hairline cracks. Protection - Impregnation The floor surface must be clean and dry before applying any impregnation. Residual moisture of the floor surface must be controlled. Consider also, that moisture can be exist on the floor if the surface temperature is under the dew point. The floor temperature should therefore always be 3 ° C above the dew point. (see Dew point table on page 43) Generally, it is recommended to make a sample area in an inconspicuous place, since some impregnations can change the color and gloss of the surface. Therefore, the selection of a suitable impregnation should coordinated with the client, based on the requirements and use of the floor in advance. Hydrophobic impregnators and impregnators are non-film-forming surface protection systems. Impregnators can maximum built up a thin film on the surface if applied until saturation of the surface. Impregnators can therefore not provide 100%acid protection, but improve the resistance to acid attack. In addition to simple, water-repellent impregnators, there are also premium solutions with an increased protection against the penetration and soiling of oil and grease. Depending on the floor itself as well as on the applied surface preparation, the effect and duration of the selected protection system can be very different. If there is no experience or in cases of doubt, a sample area should always be appliedwith regard to appearance, protective effect and consumption. The following table shows a brief overviewof theOBTEGO impregnations: * The description of Basic, Plus und Premium means the effectivenes of the protection. However, the functionality of the protection depends of the substrate itself, the surface preparation and the amount of applied impregnation material. Therefore it cannot be specified a time range about the resistance. Basically, products such as R-30 or R-50 do not cause any significant color deepening effect. However, since the material penetrates into the pore structure, the surface naturally appears a little bit richer in color as an untreated area. Product film-forming color deepening effect water repellent* oil and grease repellent* OBTEGO R-30 no light Basic Basic OBTEGO R-40 yes colored; translucent to opaque Plus Plus OBTEGO R-50 yes light Plus Plus OBTEGO R-400 no intensive Premium Premium 41
Since there are different requirements for surface protection in the market, some standard systems have been arisen: Protect floor surface for subsequentworkings Especially with decorative floors such as power trowelled design screeds, terrazzo or self-leveling compounds a subsequent floor covering (floor protection) is recommended. Very often treated floors are covered too early or incorrectly. If a protected floor is covered/protected too early and the impregnation is not fully cured, collide coverings and overlapping areas can lead to visible pressure marks (lines). These marks, can usually only be removedwith greater expense if the floor was covered for a longer period of time. In the case of extreme pressure marks, the floor surface often has to be grinded/polished with a diamond cleaning pad or a fine diamond tool and the impregnation has to be applied again. Depending on material consumption and drying conditions, do not cover impregnated floor surfaces before 48, better 72 hours (under normal conditions; room temperature 20 ° C and good air circulation). Floor coverings must always be made of diffusion-open and non-bleeding material. The cover material must also not bleed if it comes into contact with water. In addition to color changes in the floor, the functional properties of the impregnation may also be reduced if the floor surface is not covered with suitable material. As suitable floor coverings diffusion-open fleeces or cardboards are suitable. For vapor-permeable fleeces, we recommend the HAMMERFEST products from Protect & Cover from Schorndorf (Germany) or similar. These have absolutely proven themselves and are also promoted by BG-Bau (DGUV certificate). Cleaning andMaintenance Correct cleaning and maintenance is an absolute must, primarily with decorative floors. Nevertheless, at industrial used areas, building owners or tenants usuallymake no great effort for cleaning andmaintenance. Basically, floor surfaces treated with OBTEGO are cleanedwith a dampmop. For large, free and industrial areas an auto-scrubber with clear water is mainly used. OBTEGO maintenance cleaners or OBTEGO basic cleaners can be used, to remove superficial soiling's more easily and faster. For more detailed information, please refer to our cleaning recommendations. Note: In the case of decorative floor surfaces, additional measures may be necessary to protect the floor from scratches (e.g. clean-off zones at entrances, felt pads on chairs and tables, etc.). System variant Purpose of application / Properties OBTEGO R-30 Logistics areas /ware houses · transparent · dust free · increase of hardness and densification of pore structure · basic protection properties · easy to clean OBTEGO R-40 Commercial /industrieal areas with light to medium heavy traffic · colored; transluscent to opaque · dust free · increase of hardness and densification of pore structure · good surface portection properties· film forming product OBTEGO P-3 + OBTEGO R-50 Commercial /industrial areas with medium to heavy traffic · transparent · dust free · increase of hardness and densification of pore structure · good surface protection properties · can be polished to high gloss · light filmforming OBTEGO R-30 + OBTEGO R-400 Commercial / industrial areas with highest traffic· transparent · dust free · increase of hardness and densification of pore structure · very good surface protection properties 42
Dewpoint table Airtemperature in °C Dew point temperatures in ° C with a relative humidity of 45 % 50 % 55 % 60 % 65 % 70 % 75 % 80 % 85 % 90 % 95 % 2 4 6 8 10 -7,8 -6,1 -4,5 -2,7 -1,3 -6,6 -4,9 -3,1 -1,6 0,0 -5,4 -3,7 -2,1 -0,4 1,3 -4,4 -2,6 -1,1 0,7 2,5 -3,2 -1,8 -0,1 1,8 3,7 -2,5 -0,9 0,9 2,8 4,8 -1,8 -0,1 1,9 3,8 5,8 -1,0 0,8 2,7 4,8 6,8 -0,3 1,6 3,6 5,7 7,7 0,5 2,4 4,5 6,5 8,5 1,2 3,2 5,4 7,3 9,3 11 12 13 14 15 -0,4 0,4 1,3 2,2 3,1 1,0 1,8 2,8 3,8 4,7 2,3 3,2 4,2 5,1 6,1 3,6 4,5 5,4 6,4 7,4 4,7 5,6 6,6 7,6 8,5 5,8 6,7 7,7 8,7 9,6 6,7 7,8 8,7 9,7 10,7 7,7 8,7 9,6 10,7 11,7 8,6 9,6 10,5 11,6 12,6 9,4 10,5 11,4 12,6 13,5 10,2 11,3 12,2 13,4 14,4 16 17 18 19 20 4,1 5,0 5,9 6,8 7,7 5,6 6,5 7,4 8,3 9,3 7,0 7,9 8,8 9,8 10,7 8,3 9,2 10,1 11,1 12,0 9,5 10,4 11,3 12,3 13,2 10,6 11,5 12,4 13,4 14,4 11,7 12,5 13,5 14,5 15,5 12,7 13,6 14,6 15,5 16,5 13,6 14,5 15,4 16,4 17,4 14,6 15,4 16,3 17,4 18,4 15,5 16,2 17,3 18,2 19,2 21 22 23 24 25 8,6 9,5 10,4 11,3 12,2 10,2 11,2 12,0 12,9 13,8 11,6 12,5 13,5 14,4 15,4 12,9 13,9 14,9 15,7 16,7 14,2 15,2 16,0 17,1 18,0 15,4 16,3 17,3 18,2 19,1 16,4 17,4 18,4 19,2 20,2 17,4 18,4 19,4 20,3 21,4 18,4 19,4 20,4 21,4 22,3 19,3 20,3 21,3 22,3 23,3 20,2 21,2 22,2 23,2 24,2 26 27 28 29 30 13,2 14,1 15,0 15,9 16,8 14,8 15,7 16,6 17,6 18,4 16,3 17,2 18,1 19,0 20,0 17,7 18,6 19,4 20,5 21,4 18,9 19,8 20,9 21,8 23,7 20,1 21,1 22,1 23,0 23,9 21,3 22,2 23,2 24,2 25,1 22,3 23,3 24,3 25,2 26,1 23,3 24,3 25,3 26,2 27,2 24,3 25,2 26,2 27,3 28,2 25,2 26,1 27,2 28,2 29,1 32 34 36 38 40 18,6 20,4 22,2 24,0 25,8 20,3 22,2 24,1 25,7 27,7 21,9 23,8 25,5 27,4 29,2 23,3 25,2 27,0 28,9 30,8 24,7 26,5 28,4 30,3 32,2 25,8 27,9 29,7 31,6 33,5 27,1 28,9 30,9 32,8 34,7 28,2 30,1 32,0 34,0 35,9 29,2 31,2 33,1 35,0 37,0 30,2 32,1 34,2 36,1 38,1 31,2 33,1 35,1 37,0 39,1 43
About silicates and OBTEGO silicate portfolio History 2000 years ago the Romans used Opus Caementicium, also known as “Roman concrete”. This mixture consisted essentially of sand, water, lime and rocks. To make this mixture harder, volcanic ash was added. This volcanic ash came from the Pozzuoli area, hence the current name pozzolana come from. Pozzolans consist of clay, iron oxide, alkaline components and silicates. The silicates contained served then as now to solidify the concrete. Nowadays the individual silicates are used in pure form or with additives to improve the hardness of the concrete surface and to reduce the capillarywater absorption. Different types of silicate are available for this. Mode of action Water glass is alkali silicate powder dissolved in water, e.g. Sodium, potassium or lithium silicate. These dissolved silicates react in concretewith hydrated lime to formcalciumsilicate hydrate. The gel formation that can be observed when applying silicates on concrete is a process that can be attributed to this reaction. A stable structure similar to glass is created in the pore structure, which has a positive effect on the concrete properties in terms of scratch resistance and the reduction of capillarywater absorption. The application of silicates also reduces any sanding of the concrete, which significantly simplifies the subsequent maintenance of the floor. Silicates react with hydrated lime to formcalciumsilicate hydrate, which hardens the concrete structure. Volcanic ash with silicate Sand, stones, lime, water „Roman concrete“ Concrete pore with hydrated lime Addition of silicate Concrete pore filled with calcium silicate hydrate 44
Types of silicates Ÿ Sodiumsilicate: compound of silicate and the alkali metal sodium Ÿ Potassiumsilicate: compound of silicate and alkali metal potassium Ÿ Lithiumsilicate: compound of silicate and alkali metal lithium Ÿ (Colloidal silicates: pure silicatemolecules dissolved inwater) Greatly simplified structure of silicate The following table gives an overviewof the effects of using different types of silicate: * The market shows that silicate mixtures of different silicates are well accepted, as they combine the positive properties of each single silicate. silicate alkali metal alkali metal Sodium silicate Potassium silicate Lithium silicate Gelling effect time fast medium slow Reaction time with concrete fast medium slow Penetration into concrete less more more Hardening of concrete more medium - less* less* Water absorption of concrete more less* less* 45
Proportions Simplified relation of the silicate sizes to illustrate the size relationships. Silicate sizes are in the nanometer range. The differences are very small. Therefore, the derivation of penetration based on the different silicate sizes is only possible to a very limited extent. 1,338 nm Sodium silicate Lithium silicate Potassium silicate 1,158 nm 1,022 nm 42 mm 57 mm 38 mm billard ball golf ball table tennis ball Pore size in concrete 0,001 mm ≈ 1000 nm (assumption) length of a handball field 46
47 Our silicate portfolio Type of products Pure Silicates: Silicates such as sodium, potassiumor lithium in pure formwithout additives. Mixed silicates: In order to maintain the individual positive properties of the silicates and an attractive priceperformance ratio, silicates such as Potassiumand lithiumoffered as amixture in aqueous solution. Silicates with additives: In order to adapt the product properties to the needs of the customer, silicates are provided with additives, these can, for example, additionally provide an improved water-repellent effect and / or more gloss. Product properties OBTEGO AG has tested a large number of different types of silicate in terms of abrasion and reducing capillary water absorption (densification) on concrete floors. Based on this knowledge, the silicates were further improved in terms of application and functionality. In addition, additional properties (such as a gloss effect) were taken into account. The silicate portfolio offers the customer the opportunity to use the best possible silicate, depending on the respective requirements, such as hardness / densification, gloss and protective effect. Gloss Hardening and Densification Protection Description OBTEGO P-2 Concrete densifier and surface hardener (Lithium silicate). Silicate with high active ingredient content for surface hardening of concrete floors (dust-binding). OBTEGO P-3 Concrete densifier and surface hardener (Potassium-Lithium silicate). Silicate blend with high active ingredient content for hardening of concrete surfaces (dust-binding). OBTEGO P-5 Concrete densifier and hardener with gloss effect and surface protection (Lithium silicate). Silicate with high active ingredient content for hardening of concrete surfaces (dust-binding). Reduce the capillary water absorption and increase the gloss level. OBTEGO R-30 Premium densifier and hardener with surface protection (Hybrid silicate). Silicate with high active ingredient content for hardening of concrete surfaces (dust-binding). Strong reduction of capillary water absorption. Higher protective effect.
All OBTEGO silicates are free of VOC (volatile, organic substances) and can therefore be used in ecological buildings. Whether you are a grinding company looking for a silicate to harden the floor between diamond grinding steps or you want to apply a surface finish on a power troweled industrial floor, you are at the right place at OBTEGOAG. Silicationof fresh concrete - useful? Based on results of internal studies, regarding the functionality of silicates on concrete it makes more sense to wait. A later application leads to a better hardening, densification and durability of the concrete floor. Application tests showed, which improvements concerning abrasion resistance and capillary water absorption can be expected. Within the study fresh and hardened concrete, were treated with silicate. Even during the silicate application, it becomes clear that the silicate absorption capacity increases with the degree of drying of the concrete. The treated fresh concrete indicates a clear disadvantage when it comes to abrasion resistance. Due to less absorption of silicate the hardening process is not ideal performing and therefore the concrete is weaky. Measurements clearly showa higher abrasion on fresh treated concrete compared to hardened concrete. 48 0 50 100 150 200 250 300 350 400 Sodium silicate Abrasion after 300 cycles [µm] Abrasion of fresh concrete to hardened concrete (14 days) Abort after 100 cycles reference fresh concrete solid concrete 0 100 200 300 400 500 600 700 Sodium silicate Silicate intake [ml/m²] Silicate absorption capacity of fresh concrete to hardened concrete (14 days) fresh concrete solid concrete 127% increase 73% reduction
Comparison of mechanical abrasion on silicate-coated fresh concrete (left) and hardened concrete (right). The hardened concrete was silicate after 14 days. The results relate exclusively to the test items used here. A further disadvantage on fresh treated concrete is clearly evident when it comes to capillary water absorption. Less absorbed silicate means that more small cavities remain empty. This means that due to the capillary effect surfacewater ismore strongly absorbed by the concrete. Conclusion: As the silicate absorption, as well the resulting reduction of capillary water absorption and reduction of mechanical water resistance get clearly indicated with this study, a treatment with silicate on hardened concrete should be preferred. 49 0,0 1,0 2,0 3,0 4,0 0 10 20 30 40 50 60 Water absorption [ml] time [min] capillary water absorption of fresh concrete to hardened concrete (14 days) Sodium silicate 56% reduction solid concrete reference fresh concrete
Surface protection The standard DIN EN 1504 part 2 (surface protection systems for concrete) distinguishes between three types of protection systems. Depending on the type of surface and requirements of the protection a suitable protection system should be selected. Of course, with customer requests in many new areas such as power trowelled design screeds, terrazzo floors and design self-leveling compounds, aesthetic requirements are added in addition to the functional properties for industrial areas. These range from non-film forming, authentic concrete optics and haptics to colored surfaces.
The products of OBTEGO AG primarily come within the performance feature "Protection against the ingress of substances", whereby the silicate-containing products also improve the mechanical properties (e.g. scratch resistance). Since OBTEGO products aremainly penetrating products, that leave no or only a minimal filmon the surface, they usually cannot scratch or peel off, like film-forming impregnators / sealers or coatings. Treatment of the concrete to create a water-repellent surface. Pores and capillaries are only lined out, but not filled. No film forming after application on the concrete surface. The appearance of the surface changes little or not at all. NOTE: Active agents can be silanes and siloxanes. Treatment of the concrete to reduce the surface porosity and to strengthen the surface. The pores and capillaries are partially or completely filled. NOTE 1: This treatment usually results in an uneven, thin film on the concrete surface. NOTE 2: Binders can e.g. organic polymers. Treatment to create a closed protective layer on the concrete surface. NOTE 1: The thickness is usually 0.1 mm to 5.0 mm. Special appl ications may require a thickness greater than 5mm. NOTE 2: Binders can e.g. organic polymers (with cement as an addi t i ve) or wi th polymer dispersion modified hydraulic cement. Product groups according to DIN EN 1504 part 2 Hydrophobic impregnation (H) Imregnation (I) Coating (C) 51
Hydrophobization Reduction of the surface energy of mineral building materials. Water has a comparatively high surface tension, which is attracted by surfaces with high energy (such as concrete, aerated concrete, fiber cement, brick masonry, sand-lime stone, etc.). Since the surface energy is reduced by hydrophobization, thewater is no longer attracted. It is repelling. Hydrophobizations aremostly based on silanes / siloxanes and can penetrate several millimeters into the surface. This means that an impregnation cannot scratch or peel off. However, hydrophobization only lines out the pores and does not fill them. This means that the color of the surface is not or only minimally changed. On the other hand, the protective effect of the hydrophobization creates only a light basic protection. If liquids act on the surface for a longer period of time, staining still occurs. The use of standard impregnators in heavily used areas or for areaswith increased stain protection requirements have to be considered very carefully. untreated building material surface (with absorbing water molecules) hydrophobized building material surface (siloxane molecules firmly bound and their water-repellent molecular parts (here simplified only CH3 groups) facing outwards) 52
Hydrophobic impregnation penetrates - the surface is only primarily protected and soiling still occur.
SCRATCH PLASTICIZER MIGRATION
Impregnation As already mentioned for the product groups, mostly polymers are used for such impregnators, which on the one hand penetrate little bit into the surface when the substrate is absorbing, but also leave a thin film on the substrate. Such impregnators / sealers can be based on acrylic resin dispersions, thin poly methyl methacrylate resins (PMMA) or also epoxy resins. As long as there is a closed filmon the surface, there is also a protective effect. Unfortunately, mechanical impact can easily cause scratches on the floor. If water is added to the damaged/scratched area, water can penetrate and for a long term reaction the film-forming surface protection system can peel off. In the case of not diffusion open and film-forming systems, bubbles can also blow up if moisturewas trapped during impregnation. Risingmoisture can get to a problem. Plasticizer migration or black marks, lines, e.g. due to the friction of plastic or rubber tires on fork lift trucks, are also seen more often in film-forming protective systems than in products that are completely absorbed into the surface. The removal of such marks is usually only possible through mechanical use of e.g. abrasive cleaning pads or diamond cleaning pads if thesemarks are in the superficial area. Impregnation / sealant is only thin layer on top - can scratch or peel off. 55
DAMAGED COATING
57 Coating Thicker coatings (also self-leveling coatings), polymers (also with the addition of cement or fine aggregates), which are applied as a layer or in several layers on the surface. In most cases, a coating is not applied without a primer in order to ensure adhesion to the substrate. Coatings can be based on epoxy resins, polyurethane resins or poly methyl methacrylate resins (PMMA), for example. As long as there is a closed film on the surface, nothing penetrates the subsurface. Coatings are usually crack-bridging and aremostly used in car parks and underground garages. Coatings are declining in industrial halls because they are too expensive and too expensive to maintenance. High costs can arise here, especially in the subsequent renovation. Regardless of the fact of disposal and sustainability. Coatings can also be scratched bymechanical stress and, aswith the previouslymentioned impregnators / sealers, infiltration and peeling of the coating can occur. Even with moisture from the subsurface, there is a risk of blistering and blowups. Specialist company is usually necessary for repairs to this surface protection system. Plasticizer migration or black marks, lines, e.g. due to the friction of plastic or rubber tires on fork lift trucks, can also occur with coatings. The removal of such marks is usually only possible through mechanical use of e.g. abrasive cleaning pads or diamond cleaning pads, if thesemarks are in the superficial area. However, if strong chemical resistance is required for industrial areas, a coating is essential. This also applies if slip resistance classes above R11 have to be achieved. Coating is thick on top - can scratch or peel off.
Hybrid-Impregnation Hybrid impregnations such as OBETEGOR-400 are a completely new type of surface protection product that is not covered in detail in the standardization. These are usually special mixtures of silanes and modified polymers or chemicallymodified silicates thatmeet two different requirements. On the one hand, the product penetrates deeply into the surface, such as with a hydrophobization and at the same time it closes the pores as far as possible, as with an impregnation / sealing. In this way, surface protection is obtained that does not scratch or peel off and at the same time, good to very good stain resistance properties are achieved. Aperfect solution for heavily used areas for industrial floors in production and logistics areas. Migration of plasticizers cannot be 100% ruled out, but experience compared to film-forming surface protection systems shows that this is only to be expected in extremely rare cases. The subject of superficial black marks and lines caused by friction is also not to be found here. Furthermore, a subsequent reworking of already treated areas is very easy. As a rule, for worn out areas a basic cleaning and re-impregnation of the surfaces is sufficient, while film-forming systems and coatings require more effort for surface preparation and newapplication. The conductivity and slip resistance of treated floor surfaces are also not or only minimally influenced. This depends on the absorbency of the floor area andmay need to be checked on-sitewith a sample area. OBTEGOhybrid impregnators impregnates and also fills the pores. Surface protectionwithout any disadvantages 59
Concrete refurbishment Concrete floors are exposed to enormous loads, especially in the industrial sector. Therefore, the best industrial floor must be renewed after years of intensive use. A refurbishment can be better and cheaper than a new concrete floor. Our OBTEGO solutions are not only suitable for new buildings, but can also be used for refurbishments. With our solutions, worn floors can regain their shine and strength. You get a higher stain protection and a higher dust-free area for your surface and canmake it denser andmore resistant. Our solutions are used, for example, for refurbishments of industrial floors in commercial enterprises, market halls, logistics centers, supermarkets and much more. The refurbishment of terrazzo and design floors is also possiblewith theOBTEGO solutions and products.
BEFORE AFTER
Our solutions for refurbishments Are you looking for a solution for your old and damaged cement surface? Our OBTEGO solutions are not only suitable for newbuildings, but can also be used for refurbishments. With our solutions, worn floors can regain their shine and strength. You get a higher stain protection and a higher dust-free area for your surface and canmake it denser andmore resistant. Our solutions are used, for example, for refurbishments of industrial floors in commercial enterprises, market halls, logistics centers, supermarkets and much more. The refurbishment of terrazzo and design floors is also possible with the OBTEGO solutions and products. In addition to a high-performance special impregnation, our OBTEGO solutions also include a professional recommendation for substrate preparation and a cost-optimized cleaning and maintenance concept. Thus, existing cementitious floors can be washed first and then a special impregnation can be applied. Sincemechanical abrasion on the floor coverings is usually unavoidable, care after awhile is absolutely recommendable, so that you have an optimally protected and good looking floor even after years. Depending on the type of floor and requirement profile, an individual solution must be developed for refurbishments. Which products are best suited for you, we clarify gladly in the context of an individual advice.We look forward to your inquiry.
Contact
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How you can contact us We, theOBTEGOAG, are happy to be there for you!! Postal address: OBTEGOAG Landshuter Straße 36 84051Altheim Germany Tel.: +49 8703/93844-0 Fax: +49 8703/93844-29 Internet: www.obtego.com Email: sales@obtego.com Address for navigation systems: Boschstraße 1 84051 Essenbach Germany DISCLAIMER This catalog and the containing descriptions, as well as technical information and explanations have been compiled by us with the greatest care. Nevertheless, we cannot assume any liability for sentence and printing errors, technical changes to the products and resulting damages in relation with our technical statements or our ability to deliver. Illustrations and descriptions in this catalog do not represent guaranteed properties. All information and given information on the suitability and application of the products does not release the customer from carrying out his own tests and inspections about the suitability concerning the intended application of the product. In addition, the customer has to pay attention to the specifications in the respective technical data sheets and safety data sheets of the products concerning the handling and the area of application of the delivered products. The author expressly reserves the right without any special announcement to withdraw parts of the pages or the entire offer, to change, to add or to delete the publication temporarily or permanently. 67
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