TVB 100% Solids Topside Vapor Barrier is a two component, water based epoxy primer for concrete floors. It has excellent adhesion to moisture laden slabs and can be used to remedy concrete floors with high moisture levels before the application of the finish coating. It is pH resistant and capable of holding back up to 25 lbs. of MVT (Moisture Vapor Transmission). TVB 100% Solids Topside Vapor Barrier can be applied to damp concrete.