Henry ® Blueskin PreSeal™ 435 is a pre-applied, fully and permanently bonded composite sheet membrane system for waterproof construction. The membrane contains an adhesive and provides for mechanical attachment into wet concrete to form a permanent barrier seal. Blueskin PreSeal 435 consists of a polypropylene (PP) membrane laminated to a chemically enhanced non-woven geotextile fleece with a dimpled surface. Blueskin PreSeal 435 is pre-applied prior to rebar installation and concrete placement.

Features

• Proprietary dual bond technology provides full mechanical and adhesive bond to the concrete.
• Fully adheres to substrates eliminating water migration.
• Easy installation with self-adhering laps and splices (no tools or torches required)
• Wider roll width results in fewer seams, reducing risk of water ingress
• Better cold weather flexibility than polyethylene based membranes
• Barrier to water-vapor and radon gas permeation
• High chemical resistance