Flash Harry 1LT Fibre Flex Waterproofing heat shrink Bitumen Mastic is solvent-based and

Bitumen Mastic is solvent-based and therefore not recommended for fish ponds or any drinking water applications

A pure acrylic waterproofing polymer

Metallic colours

Not suitable for use on polystyrene

Our TP safety valve complies to SANS 198 and is SABS approved with a two-year guarantee

Flash Harry 1LT Fibre Flex Waterproofing heat shrink Bitumen Mastic is solvent-based andA pure acrylic waterproofing polymer A pure acrylic waterproofing polymer, modified with latex that allows extreme flexibility, UV stability and adhesion. 350% stretch. For roofs, walls, parapets and all roofing applications Always use in conjunction with a waterproofing membrane As with any liquid and membrane system, the first saturation coat is critical. Applying many coats on top of the membrane does not yield proper results. On porous surfaces a