The original liquid polyurethane waterproofing membrane! After 25 years going still going strong – only getting better as the product used to be a tar modified urethane but now tar free. Duram 195 cures to form a tough, flexible, ‘rubber-like’, seamless waterproof suitable for UV exposure. Typical applications include roofs, gutters, retaining walls, planter boxes, landscaped areas. Duram 195 is black in colour but will not bleed or stain tiles or grout as the product is tar and bitumen free.