Polyethylene Polypropylene Polyester Composite Polymer Waterproof Membrane Sheet

Four Layer Structure: The composite membrane integrates a reinforced protective layer an anti aging layer a waterproof layer and a tackifying reinforcing layer.

Material Composition: The product description identifies polypropylene nonwoven fabric and polyethylene as the main materials with additives used to improve performance.

Rough Mesh Surface: The rough upper and lower surfaces and irregularly crossed nonwoven fibers form three dimensional mesh holes for bonding-related construction use.

Cement Paste Bonding: Cement paste can enter the surface mesh holes and solidify with cement as a whole when bonding with a cement based surface.

Elongation Performance: The FS2 table lists elongation at failure of at least 400 percent at normal temperature and at least 300 percent at minus 20 degrees Celsius.

Water Impermeability: The FS2 performance table lists no leakage at 0.3 MPa for 30 minutes.

Low Temperature Bending: The FS2 table lists no fissures at minus 20 degrees Celsius during the low temperature bending test.

Alkali Resistance: After exposure to saturated calcium hydroxide solution at normal temperature for 168 hours the listed tensile strength and elongation retention are each at least 80 percent.

Artificial Climate Aging: The FS2 table lists tensile strength retention of at least 80 percent and elongation retention of at least 70 percent.

Bonding and Composite Strength: The table lists sheet to sheet peeling strength of at least 1.5 N per mm and FS2 surface to core composite strength of at least 0.8 N per mm.