Grace Preprufe
GCP Applied Technologies (“GCP”) PREPRUFE 300R Plus membrane is a unique composite sheet comprised of a thick HDPE film, pressure sensitive adhesive, and weather resistant protective coating. Designed with ADVANCED BOND TECHNOLOGY™ and dual adhesive ZIPLAP™ seams, the PREPRUFE Plus membrane forms a unique, integral bond to poured concrete. This integral bond is specifically designed to provide a robust barrier to water, moisture and gas and prevents both the ingress and lateral migration of water.