Specially Formulated for Fiberglass Reinforced Panel Installation. Easy to Trowel and Cures to a Strong, Flexible Bond. High Initial Grab Minimizes Panel Slippage. 30 Minute Repositioning Time Allows for Correction of Misaligned Materials. Will Not Etch, Damage or Burn Through Plastic or Foam Panels; No Flashing or Venting is Required. Water-Based Adhesive: Non-Flammable, Low Odor and Easy Soap and Water Clean-Up for Uncured Adhesive.