Product Waterproofing membrane
Fixing Liquid applied
Suitability Basements
Floors
Walls
 
 
 

KÖSTER 21 is a 2-component, solvent-free, liquid applied, elastic, crack bridging waterproofing material that provides excellent adhesion to dry and moist substrates. 

Features and benefits

  • Liquid-applied - it is seamless, easing application to complicated architectural details.
  • UV stable - suitable for indoor and outdoor use.
  • Its white color reflects sunlight and reduces building surface temperatures.
  • Highly flexible fast curing coating - resistant to occasional foot traffic, aging, hydrolysis, UV rays, frost, and salt.
  • Bonds well to a wide variety of substrates, including masonry, concrete, screed, PVC, metal, and bitumen.
  • Seals against synthetic oils and aliphatic hydrocarbons with high boiling points (up to 2 bar).
  • Not resistant against substances with high aromatic hydrocarbon contents such as benzene, xylene, toluene, etc.
  • Does not contain volatile organic compounds (VOC content = 0), is free of polyurethanes, isocyanates, and bitumen.

Applications

KÖSTER 21 is a waterproofing material for the positive side waterproofing of basements, concrete slabs, in tanks, on flat roofs, underneath tiles, on terraces or balconies, and similar applications.

It is also suitable as a protective coating against mineral oils and aliphatic hydrocarbons.

KÖSTER 21 can protect surfaces in facilities with chemical and mechanical demands on the coatings, such as containment and skimming tanks.  

Specification

  • Product code: DMS244
  • Size: 20kg
  • Coverage rate: 2.5kg/m² = 8m²


KÖSTER 21 is a 2-component, solvent-free, liquid applied, elastic, crack bridging waterproofing material that provides excellent adhesion to dry and moist substrates. 

Features and benefits

  • Liquid-applied - it is seamless, easing application to complicated architectural details.
  • UV stable - suitable for indoor and outdoor use.
  • Its white color reflects sunlight and reduces building surface temperatures.
  • Highly flexible fast curing coating - resistant to occasional foot traffic, aging, hydrolysis, UV rays, frost, and salt.
  • Bonds well to a wide variety of substrates, including masonry, concrete, screed, PVC, metal, and bitumen.
  • Seals against synthetic oils and aliphatic hydrocarbons with high boiling points (up to 2 bar).
  • Not resistant against substances with high aromatic hydrocarbon contents such as benzene, xylene, toluene, etc.
  • Does not contain volatile organic compounds (VOC content = 0), is free of polyurethanes, isocyanates, and bitumen.

Applications

KÖSTER 21 is a waterproofing material for the positive side waterproofing of basements, concrete slabs, in tanks, on flat roofs, underneath tiles, on terraces or balconies, and similar applications.

It is also suitable as a protective coating against mineral oils and aliphatic hydrocarbons.

KÖSTER 21 can protect surfaces in facilities with chemical and mechanical demands on the coatings, such as containment and skimming tanks.  

Specification

  • Product code: DMS244
  • Size: 20kg
  • Coverage rate: 2.5kg/m² = 8m²


Interested in this product?
Call 01992 523523
OR
 
 
 
Downloads
  • KÖSTER the waterproofing specialists
    KÖSTER the waterproofing specialists
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DELTA House
Merlin Way
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CM16 6HR
Tel: 01992 523523
Fax: 01992 523250
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KÖSTER 21 solvent-free waterproofer