SIKA BLACKSEAL ELASTIC

A BRANZ appraised polymer modified water based bitumen emulsion. Formulated for use as a waterproof membrane behind retaining walls and as a damp-proof membrane for underground structures. Can be applied to concrete, concrete block and brick-work, wood and metal. BRANZ Appraised certificate No.770 [2018] Meets Clause B2 Durability, not less than 50 years, E2 External Moisture and F2 Hazardous Building Materials Appraised as an Alternative Solution in terms of the New Zealand Building Code Improved moisture vapour flow resistance of >300 MNs/g Fast cure, recoat in 4 hours Complies with AS/NZS 4020, tested for use in contact with drinking water (potable water) Can be mixed with sand and cement to create waterproof screeds and mortars Water based, free from solvents Simple to apply by brush or roller Excellent adhesion to concrete and masonry Very low water permeability Can be applied to green concrete Resistant to ground salts