WallSecure is a fast setting wall and block adhesive with excellent adhesion to drywall, wood, metal, concrete, landscape blocks, capstones and other masonry substrates. WallSecure is 100% solids and is ideal for filling gaps or forming bonds on irregular surfaces without shrinking. WallSecure is a solvent free, non-flammable, moisture curing adhesive that complies with all OSHA, State, Local and Federal air quality regulations. This adhesive is non-carcinogenic and contains no substances listed on California Proposition 65.