Description
Westcoat’s WP-40 & WP-41 Sheet Membranes are 40 mil. and 60 mil. rubberized asphalt, self-sealing,
self adhering waterproof membranes. They are reinforced with a non-woven polyester fabric. WP-40
& WP-41 have a white polyester scrim which allows light foot traffic and a short period of UV exposure.

Uses
WP-40 is primarily used on all plywood seams and WP-41 is primarily used below tile or concrete. They
are also used as a secondary waterproofing membrane in critical situations or any areas where a selfsealing, self-adhering waterproof membrane is needed.

Advantages
Self-Sealing • Waterproof • Self-Adhering • Economical • Reinforced • User Friendly • Withstands Light
Foot Traffic