Bostik’s Vapor-Lock™ is a high performance adhesive, moisture control, and sound reduction membrane all in one. Its superior properties provide a tough, flexible, tenacious bond to a variety of surfaces, and it is not adversely affected by exposure to moisture, water or alkalinity. Vapor- Lock™ exhibits exceptional green grab or high tack immediately after troweling, making installation easier and more secure. This adhesive contains 1% recycled rubber material, has zero VOC’s (as calculated per SCAQMD Rule 1168) and does NOT contain any water. Vapor-Lock™ contains Bostik’s BLOCKADE™ antimicrobial protection, which inhibits the growth of bacteria, mold, or mildew on the surface of the dried adhesive.