Black Butyl Setting Tape is an all-weather preformed joint sealant made of
Butyl rubber material in a flexible 5/16" square rope form.
Butyl was originally used to seal window glass into autos, special effects technicians use it as a source for small flames.
Butyl comes with a plastic coated protective release paper that removes easily. Reusable as an adhesive. 15' long. Weighs 1 lb.
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