Goof Proof Shower Goof Proof Waterproofing Sheet Membrane Underlayment Inside Corner

Goof Proof Sheet Membrane Pre-Formed Inside Corners are made from the 20 mil Sheet Membrane waterproofing material and are used to insure a watertight seal in 90° corners. Safeguards against possible leaks. Attaches easily with modified thinset or Goof Proof Sealant GPSL-2000 · Goof proof sheet membrane waterproofing pre-formed inside corner · Insures a watertight seal on inside corners · Saves time during system installation · Goof proof sealant GPSL-2000