Koster 21 20kg (Coverage Up to 7M2 @ 2 Coats)

: £132.00
£110.00 £132.00

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Koster 21 20kg (Coverage Up to 7M2 @ 2 Coats)

Koster 21 is a 2 component, liquid applied, elastic, crack bridging, solvent free waterproofing system and can be applied to a damp and moist substrates.

Koster 21 is liquid applied and therefore seamless. This means that there are no joints which are often a weak point for sheet applied waterproofing system.

Koster 21 is typically used to waterproof podium decks, balconies, buried roof and also tricky areas such as external solid stairs.

Koster 21 is UV stable and trafficable to light foot traffic. It can therefore be left expose with a pure brilliant white colour.

Koster 21 is free from volatile organic compounds and does not have a strong odour making it ideal for use near where people are working or living.

Weight25 kg

Click to open and download:

Data Sheet KÖSTER 21

1 review for Koster 21 20kg (Coverage Up to 7M2 @ 2 Coats)

  1. Tony J

    Great product. Easy to install. I used it to waterproof the outside of solid concrete stairs at the front of a georgian townhouse. Worked really well. Very bright white in colour.

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