Flex tape
Flex tape is a super strong, rubberized waterproof tape that instantly seals out water, air and moisture to create a flexible, rubberized waterproof barrier.
Application
Patch, bond, seal and repair cracks, holes, gaps and tears. Excellent for roof leaks, gutters, boats, HVAC system.etc
Regular Size: 4”*5’ other sizes can be customized.
Color: Black/White/Clear
http://www.chinabutyltape.com/