WPC77 Pipe collars with Fleece with expansion zone is a waterproof and premanently elastic sealing product. It’s made from thermoplastic elastomer, both side special non-wovens and centrally inserted one more TPE rubber layer. Non wovens allow excellent bonding with any embadding materials used for undertile applicaton. APPLICATIONS: For permanent sealing wall and floor pipe passages in common with embbading materials, underneath ceramic tiles or natural stones, in outdoor or indoor construction parties like, bathrooms, showers, balconies, terraces etc. It’s highly resistant on hydrostatic pressure and vapor permeable, tear proof and chemical resistant. Very good behaviour on temperature differences.