HUMI-BLOCK Overcomes damp problems Suitable for indoor or outdoor use - Untreated masonry - Can be applied to all surfaces - Moisture vapour permeable I Prepare the substrate Check the humidity level Scrape off damaged plaster Dust the substrate II Prepare the filler Choose your application method Fill or finishing coat First coat Formula for filler preparation one part water to five parts powder Plaster render Apply with a plasterer's trowel Time between coats : 12 to 24 hours Second coat Formula for finishing coat preparation : one part water to four parts powder Whitewash brush Use a wide brush, apply two coats with angled strokes Time between coats : 12 to 24 hours Leaves a white, even surface May be covered with breathable coating or paint