3M 4411N Extreme Sealing Tape is a 40 mil conformable translucent film tape built for watertight sealing on metals, plastics, and difficult-to-bond surfaces. Its aggressive acrylic contact adhesive bonds without primers or surface preparation on most substrates, setting it apart from standard sealing tapes that require conditioning steps.

This tape is well suited for sealing, patching, and weatherproofing tasks in manufacturing plants, construction sites, facilities maintenance programs, and distribution centers. The conformable film wraps tightly around irregular, textured, and uneven surfaces, creating a reliable barrier against moisture, air, and contaminants.

The tape operates across a temperature range of 40°F to 100°F and delivers a tensile strength of 13 lb, with rated outdoor durability for extended exposure. Each case contains 3 rolls and ships via parcel carrier.