Flash Harry One Shot + Membrane (Various Colours)

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.

Do not use to overcoat bitumen waterproofing systems.
Ensure compatibility when applying a waterproofing compound over an existing unknown product.

Not recommended where exposure to negative water pressure is present.

Clean up with water.