Flash Harry One Shot Acrylic Waterproofing 20L

• An acrylic compound for waterproofing of iron, or tiled pitched roof applications, skylights, parapets, roof ridges, flashings and roof screws. • One shot must be used in conjunction with a waterproofing membrane. As with any liquid and membrane system, the first saturating coat is critical. • Applying many coats on top of the membrane does not yield proper results. • Not recommended for areas of long-term ponding or under tiles (fish ponds etc). • On porous surfaces a 50% product and water dilution or a bonding liquid, is recommended as a priming coat.