MasterSeal M 640 – A flexible and elastic single component polyurethane waterproofing membrane

How does MasterSeal M 640 work?

MasterSeal M 640 is a single component, polyurethane based, elastomeric coating for roof waterproofing.

What are MasterSeal M 640 typical applications?

MasterSeal M 640 is applicable for outdoor use and can be applied on concrete and cement mortars. It is recommended for waterproofing roofs, balconies and terraces.

What are MasterSeal M 640 main benefits?

MasterSeal M 640 main features and benefits are:

High elasticity and flexibility
Excellent adhesion to concrete and mortar. Fully bonded system.
Once hardened it is impermeable to water and carbon dioxide.
Tar free
Easy to apply.
Single component and low viscosity.
Excellent crack bridging capacity even at low temperatures.
Monolithic – no laps, welds or seams.
High water vapour permeability - low risk of blistering.
Excellent mechanical properties.
Resistant to standing water.
Can be re-coated after only a few hours.