3M 08475 Seam Sealer Tape (3/8in x 30ft) is a pre-formed butyl rubber seam sealing strip that provides a permanent, flexible seal on automotive metal seams without guns, mixing, or cure time concerns. Press-in-place installation makes it the fastest seam sealing method for hemmed flanges, pinch welds, and panel joints in production collision repair.
Butyl rubber permanently bonds to bare metal, primed, and painted surfaces, flexing with panel movement throughout the vehicle’s service life without cracking. Widely specified in OEM assembly and insurance-standard repair procedures for hem flanges, trunk lip seams, and roof rail joints. Paintable immediately after application — no flash time, no waiting.
- Width: 3/8in
- Length: 30ft
- Material: Butyl Rubber
- Application: Press-in-place — no gun or mixing required
- Substrates: Bare metal, primed, painted surfaces
- Paintable: Yes — immediate
- Part Number: 08475
Fastest seam sealing method in production. Roll on, press firmly, paint over. No cure wait, no mess, no cleanup. Stock in both widths for different seam profiles.
