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Keim Concretal W, a sol-silicate protective concrete paint system that offers water repellence & vapour permeability, forming a chemical crystalline bond with the substrate. Protects concrete from weathering & penetration of liquid water while providing very good water vapour diffusion, preventing water formation within concrete & thus corrosion of reinforcement steel.
This product is available as price on application. Click here to email us for more information.
Keim Concretal W protects concrete from weathering and penetration of liquid water while simultaneously providing very good water vapour diffusion, it prevents water formation within concrete and thus corrosion of reinforcement steel (corrosion protection by keeping concrete dry). Keim Concretal W prevents penetration of chloride salts and other pollutants, it has a matt mineral finish and preserves concrete surface textures.
The sol-silicate protective concrete paint system offers water repellency, vapour permeability and forms a chemical crystalline bond with the substrate. Keim Concretal W is made using pure inorganic mineral fillers, earth oxide colour pigments and potassium silicate binder.
Fields of application include in-situ and precast concrete elements and structures, blockwork, lightweight concrete, asbestos cement and cementitious building boards. Keim Concretal W is used to protect concrete surfaces on exterior facades and interior concrete surfaces with a protective action providing protection from water and weathering by silicification and protection from chlorides.
| Material characteristics | |
|---|---|
| Resistance to vapour diffusion | Sd (H2O) = 0.02 m |
| Density | 1.15-1.45g/cm 3 depending upon colour and opacity |
| Water Absorption Co-efficient | W = 0.1 kg/m2 h0.5 |
| Carbonation protection | Sd (CO2) = 110 m |
| Thermal Expansion | Comparable to the mineral substrate onto which it is applied. |
All loose, flaking and unstable material must be identified and then thoroughly removed, all surfaces must be thoroughly washed down with clean cold water to remove all surface dirt and dust. When all surfaces are clean, sound, wind dry, dust free and free from all surface contaminants, decoration using KEIM Mineral Paints may proceed.
Keim Concretal W should be applied as a two coat system, the first coat to be diluted with up to 30% by weight Keim Concretal Dilution and applied by brush or roller, working well into all surfaces. After a minimum period of 12 hours a final coat of Keim Concretal W may be applied undiluted in a like manner.
Ambient and substrate temperature above 5°C and below 30°C. Do not apply in direct sunlight or onto sun-heated surfaces, nor if it is raining or if there is an immediate likelihood of rain.
Approx. 0.4kg/m2 Keim Concretal and 0.06lt/m2 Keim Concretal Dilution.
Consumption rates are offered for guideline purposes only and are quoted for smooth rendered surfaces. Actual rates are the responsibility of the applicator. Project specifications should be referred to for specific rates.
Clean tools with water immediately after use.
The NBS (National Building Specification) is a UK-based specification launched in 1973 and is used by building professionals and architects to describe the materials, standards and workmanship of a construction project. Keim provides documentation specific to this product that outline the NBS specifics. You can download these documents by locating the Keim Granital product at the following link: Download the NBS Documents Here
Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.
Keim Concretal Dilution, for use with concrete protection coatings KEIM Concretal W and KEIM Concretal Lasur, consolodating by reacting chemically with the surface. Reacts chemically with the surface to which it is applied The product comprises of liquid potassium silicate and stabilisers Water vapour permeable Odourless and non-toxic...
