*May not work for all types of plastic or rubber. EXTRA-STRONG & WATERPROOF: Gorilla Patch & Seal Tape is the extra-strong rubberised tape that can be flexed and stretched to adapt to any surface to form a permanent waterproof, airtight* barrier. *Performance reduced on porous materials. STOPS LEAKS INSTANTLY: This tape can be used to instantly repair emergency leaks to form a permanent waterproof & airtight barrier due to its rubberised, UV-resistant backing. INDOOR & OUTDOOR: Suitable for both indoor and outdoor use, offering reliable protection against water, air, and moisture for various surfaces and environments. Can be used for patching cracks, gaps, tears and holes indoor and out. GREAT FOR: Roofing, gutters, drainage pipes, tarpaulin, trailers, camping, pond liners and flashing applications. Adheres to wood, metal, concrete, stone, rubber and plastics*.