Keim Concretal W

3421

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.

  • Available in 250+ colours
  • More colours (Avantgarde, Concrete) are available on request, per spec
  • Should be applied as a two coat system
  • Prevents penetration of chloride salts & other pollutants
  • Preserves concrete surface textures
  • For use on in-situ & precast concrete elements & structures, blockwork, lightweight concrete, asbestos cement & cementitious building boards
  • Water vapour permeable & colour fast
  • Resistant to mould & fungal growth - Easily cleaned
  • Free from solvents & biocides
  • Easy to over-paint - Non flammable

Product customisation

Don't forget to save your customization to be able to add to cart
  • 250 char. max
Colour Group
Size
Finish
£118.25
£141.90 Incl. VAT
Quantity
Please choose your colour
In Stock and Available for Delivery (See Delivery Options Below)

100% secure payments
Description

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.



Quick Links - Click To Jump To Section:




Features & Benefits


  • Available in 200+ colours
  • Prevents penetration of chloride salts and other pollutants
  • Preserves concrete surface textures
  • Protects concrete from weathering and penetration of liquid water
  • Provides very good water vapour diffusion
  • Prevents water formation within concrete and thus corrosion of reinforcement steel (corrosion protection by keeping concrete dry)
  • For use on:
    • In-situ and precast concrete elements and structures
    • Blockwork
    • Lightweight concrete
    • Asbestos cement
    • Cementitious building boards
  • Water vapour permeable
  • Colour fast
  • Resistant to mould and fungal growth
  • Easily cleaned
  • Free from solvents and biocides
  • Easy to over-paint
  • Non flammable



Product Properties


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.



Application Instructions


 

Substrate Preparation


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.

 

Application


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.

 

Application Conditions


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.

 

Consumption


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.

 

Cleaning of Tools


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

Product Details
3421

Data sheet

Manufacturer
Keim
For Use By
General Use
Parts
1
Base Type
Sol-silicate
Solvent
Mixture; see section 3 of the safety data sheet
Suitable Substrates
in-situ and precast concrete elements and structures, blockwork, lightweight concrete, asbestos cement and cementitious building boards
Key Features
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
Application
Brush, Roller
Coverage
0.4kg/m2
Recommended Thinner/Cleaner
Water (for cleaning), Keim Concretal Dilution (for dilution)
Max. Application Temperature
30°C
Min. Application Temperature
5°C
UN Number
Void
Colour(s)
Fully Tintable
Base Type
Water-Based
Exterior / Interior Use
Exterior Use
Attachments
Download


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.


Be the first to ask a question about this product!


Question about the product

* Required fields
(read)
Send
You might also like

Keim Concretal Dilution

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...

Price £93.75
In Stock and Available for Delivery