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BIW Liquid Asphalt Composition (LAC) is a two coat, cold-applied damp proof membrane that can be used for ground floors, as a vapour barrier behind cladding and for tanking basements. You can also use it for waterproofing foundation walls, ducts, lintels, columns, beams and other structures at, above or below ground level.
• Dries to a uniform gloss black finish
• Provides both waterproofing and barrier to radon