This durable adhesive tape instantly seals out water, air and moisture to create a super strong, flexible, watertight barrier. Unlike other tapes available, Flex Tape’s bond will increase with time and pressure. It is environment-resistant, UV-resistant, VOC-free, and has a wide temperature range, so it can be used in extreme weather conditions. This is a Super strong, rubber, waterproof tape that can patch, bond, seal and repair virtually anything, formulated with a thick, flexible, rubber backing. It is UV-resistant, environmentally friendly, VOC-free and has a wide temperature range so it can be done in extreme weather conditions. Direct seals from water and moisture to a super strong, flexible, waterproof barrier, extra wide to quickly cover large cracks, gaps and holes. Specification: Waterproof: YES Color: black Model: single face tape Cylinder diameter: 4" inch wide /5ft long"