Waterproof Tape 5M 10M Upgraded Leak Proof Butyl Seal Strip Repair for Boat and Pipe Sealing, HVAC Ducts, Roof Crack, RV, Awning, Window Sealing, Silver. ✔ Seal Tape is made of butyl rubber by special processing, non-toxic, no contraction, anti-aging, safe and odorless.
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