This pliable non-hardening butyl mastic is a superior replacement for the original non-butyl putty tape used on vintage travel trailers. It is tacky and, unlike old fashioned putty tape, does not harden over time. Also, it is safe for contact with EPDM rubber roofs because it does not leach petroleum residue.

It is used when installing moldings, windows, doors and vents. It waterproofs overlapping metal and seals around fasteners when they are inserted through the tape.

Can be trimmed to width with a utility knife.

Color: Gray

Dimensions: 1/8" thick, 3/4" wide

Length: 30 feet