Flex Black Tape Instantly Stops Leaks Specification:- Plasticized Materials Waterproof Tape Material : Abs Description:- Super strong, rubberized, waterproof tape that can patch, bond, seal and repair virtually everything! Specially formulated with a thick, flexible, rubberized backing that conforms to any shape or object! can be applied hot or cold, wet or dry.....even underwater!Instantly seals out water, air and moisture to create a super strong, flexible, watertight barrier! Flex Tape Comes in black and white and in three sizes: is 4" X 5', 8" X 5' & 12" X 10'). It's extra wide size allows you to quickly cover large cracks, gaps and holes! UV resistant, environmentally friendly, VOC-free and has a wide temperature range so it can be used in extreme weather conditions! Adhesives may resist bonding to the following surfaces: Plasticized materials, siliconized, greasy, oily, dirty or porous surfaces, waterproof or water-repellent materials and fabrics. Always test before use.