Sika MB is an epoxy moisture barrier to help control moisture propagation in cementitious substrates with a moisture content not exceeding 6 % by Tramex Method, residual moisture up to 100 % R.H. or 25 lb/1,000 ft2/24 h (11.4 kg/92.9m2/24 h). Ideal for substrate consolidation on concrete, cement and gypsum screeds as well as adhesion promotion for old and new adhesive residues in conjunction with other Sika® products. Sika MB is suitable for concrete, cement, self-leveling and gypsum substrates, OSB, plywood, quarry and terrazzo tiles, water-soluble adhesive and cutbacks.