ARDEX WPM 640

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ARDEX WPM 640

Penetrating Water Repellent and Sealer  

ARDEX WPM 640 is a silane / siloxane based reactive sealer that provides in-depth protection by hydrophobic and pore filling crystallization action. It repels water, but allows vapour to permit, thus allowing treated substrates to dry gradually without staining. It is suitable for internal and external surfaces such as brickwork, certain types of natural stone, cement render, concrete blocks, fibre cement board and other porous masonry substrates 

Specifications  
Substrates: Concrete, renders & screeds, masonry
Location: Internal and external

Coverage:

One unit of 20L will cover approx. 5 – 6m2 / L / coat – min 2 coats are required.
Drying Times: Touch dry: 1hr,  Full cure: approx. 24hrs
Colors: Milky White
Packaging: 20L