You appear to be running an older version of your web browser. This website is designed to work with the latest browsers, so some features of this website may not function correctly with your current version. Click here to learn how to update your browser..

Speed-Flex Crack Isolation Membrane

A primerless, pressure sensitive and elastomeric crack isolation and anti-fracture system for interior applications.

Features:
  • Quick and easy to install
  • No priming required
  • Lightweight and easy to handle and cut (no tar residue)
  • Chalk lines visible through membrane for easy installation
  • 15 mil thickness
  • Interior only
  • Limited lifetime warranty
  • Non-hazardous, non-toxic (EPA 8260 & EPA 5030B tested)
  • Adhesive is solvent free, 100% solids, modified acrylic
Crack isolation and anti-fracture underlayment isolates up to 3/8” (10 mm) horizontal movement (1/8” (3 mm)) for partial coverage as recommended in the TCNA Handbook for Ceramic, Glass, and Stone Tile Installation (Detail F-125-Partial).

Applications:
  • For setting ceramic, porcelain and natural stone
  • Bridge concrete joints, cracks and expansion joints against horizontal movement of the substrate
  • Residential and commercial
  • Malls
  • Hospitals
  • Restaurants
For installations over:
  • Concrete
  • Properly prepared ceramic tile
  • Exterior grade plywood
  • OSB
  • Hardwood flooring
  • Gypsum-based underlayment*
* Requires manufacturer’s sealer applied and cured according to manufacturer’s instructions.

Project Galleries View All Project Galleries