Thompson's One Coat Water Seal uses a unique micro silicone emulsion to stop water penetration. Apply just one coat directly onto damp surfaces to provide long-lasting waterproof protection within hours. Stops damage caused by freeze and thaw. Reduces efflorescence. Suitable for use on brick, concrete, stone and wood. Specification: Coverage: 4m² per litreFlammability: Flash point above 61°CApplication: Brush or RollerDrying Time: 2 Hours Approx.