LATAPOXY Waterproof Flashing Mortar is an epoxy-based membrane. It can be used to waterproof seams, gaps or joints between a variety of substrates including metal and PVC pipe penetrations or flashing. It is specifically designed to be used under ceramic tile, stone or brick for rapid installations which require a fast curing waterproof flashing mortar or membrane. LATAPOXY Waterproof Flashing Mortar is flexible, easy to apply and will allow for rapid installations.