APOC 365 Rubberized Flashing Cement is an extremely flexible, highly durable, long-lasting leak-repair designed to be applied in all-weather/seasons and in wet or dry applications. It can be used for patching splits, cracks and seams in spudded gravel, mineral surfaced cap sheet and smooth surface asphalt roofs, as well as composition shingle roofs and vertical applications. APOC 365 seals around chimneys, vent pipes, gravel guards, down spouts, cracks in concrete and more. APOC 365 exceeds performance requirements of ASTM D3409 and ASTM D4586, TYPE I and is Miami-Dade County Product Control Approved.