TREMproof® 500 Series incorporates a double-scrim HDPE membrane with a special-weave pattern that enhances abrasion resistance, thickness, flatness and tear properties. This post-applied, self-adhered waterproofing membranes feature 20-mils of a high-perfomance butyl adhesive allowing cold-temperature application for an all-weather solution. TREMproof 545 is 45-mil and TREMproof 560 is a 60-mil composite sheet designed for use with green or damp concrete without the use of primer.