Seal Smarter, Not Harder: 3M Industrial Sealing Tape IS1

Written By Cheryl Cheslea

For manufacturers who deal with panels, rivets, and fasteners, water intrusion is a constant challenge. Traditionally, sealants and butyl tapes have been the go-to solution, but they come with drawbacks such as messy application, long cure times, and inconsistent results.

That’s where 3M Industrial Sealing Tape 1SI changes the game. Designed specifically for sealing around rivets, screws, and nails, IS1 creates a durable water and vapour barrier. The tape’s thin, flexible backing allows it to easily conform between surfaces, while its aggressive adhesive ensures a secure bond, even in tight spaces.

Product highlights include:

  • Moisture protection at fastener points -immediately seal around rivets, screws, and nails.

  • Quick and clean application - no wait time for sealant to cure.

  • Works in tough conditions - can be applied in temps as low as 0°F (-17°C).

  • Durable in service - performs between -40°F and 240°F.

Compared to other sealing solutions, IS1 is ideal for:

  • RVs, trailers, and specialty vehicles

  • Automotive applications (windows, moon roofs, body panels)

  • HVAC and electrical enclosures

Not to be confused as being UV resistant like 3M’s Extreme Sealing Tapes, IS1 is designed for between-panel sealing rather than direct rooftop exposure.

At Muir Tapes & Adhesives, we’re excited to help our customers seal smarter, not harder.

Cheryl Cheslea
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