Bostik Black-Top™ is a liquid, rubber-based, fabric-reinforced, roller-applied, flexible waterproofing and anti-fracture membrane. Use Black-Top™ as a waterproofing and/or anti-fracture membrane over properly prepared concrete; structurally sound, exterior grade plywood (interior/dry use only); cementitious backer board; and existing, well-bonded ceramic tile or cement terrazzo prior to the installation of ceramic or stone tile. It can be used on interior/exterior floors and walls. Bostik Black-Top™ exceeds ANSI A118.10 and 118.12, as well as ASTM C-386-89.
Waterproofing Product Showcase Index