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© LAMATEK, Inc. | | 1-800-LAMATEK (local 856-599-6000)
3M Extreme Sealing Tape by LAMATEK. Available in Black, Gray, and Translucent (natural)
LAMATEK is an authorized 3M™ Select Converter
  • Highly conformable 3M™ adhesive technology
  • Provides consistent, waterproof bond over edges, contours, and mechanical fasteners
  • Rolls on fast, stays stuck, and looks good
  • Bonds instantly to most substrates with no drying time, dripping, oozing, or cleanup
  • Seals out rain, snow, sun, wind and more
  • Resists water, UV and extreme temperatures
  • Tough, flexible ionomer backing resists abrasions
  • Instantly paintable surface blends in
  • Also referred to as “Single Sided VHB™ Tape”
LAMATEK is an authorized 3M™ Select Converter

Interested in this product?

Please feel free to Contact Us if you have any questions.

Product Overview

3M Extreme Sealing Tape, also referred to as “single sided VHB™ tape” is a flexible, tough, single coated tape that conforms over edges, contours and even screws and rivets. 3M™ acrylic technology absorbs vibrations and holds securely through sun, rain, snow, temperature extremes and humidity for an instant seal that rolls on fast and looks good. Extreme Sealing Tape saves time and money by eliminating the need for additional tools that require storage and cleaning, and create unnecessary waste.


3M Extreme Sealing Tape should be overlapped on itself3M™ Extreme Sealing Tape sticks immediately to metals, plastics and other substrates without drying time, dripping, oozing, or clean-up. Simply unwind the tape and press it into place to provide a water and airtight seal or seam.


Noteworthy Tip:

It is often required to overlap 3M™ Extreme Sealing Tape onto itself. In this case, the ionomer backing of the first piece is one of the substrates to which the second piece of tape is bonding. The tapes should overlap at least 2 cm (3/4 in).

Material Info & Colors

Conformable 3M™ acrylic forms an even bond over contours, edges, rivets and screws for a water tight seal while the tough ionomer backing resists abrasions and harsh outdoor conditions. Proven 3M™ adhesive tape even bonds to itself for unbeatable performance on overlapping seams and joints.


3M Extreme Sealing Tape is available in 3 colors with an instantly paintable surface that you can match to joined surfaces. The following options are available:

  • 4411N: 40 mils thick Natural/Translucent
  • 4411G: 40 mils thick Gray
  • 4411B: 40 mils thick Black
  • 4412N: 80 mils thick Natural/Translucent
  • 4412G: 80 mils thick Gray


Standard widths are provided on a 3″ core tube:

  • 3/4″
  • 1″
  • 2″
  • 2 1/2″
  • 3″
  • 4″

LAMATEK also cuts custom width tapes by request. Get a quote from us today.


As a 3M™ Select Converter, LAMATEK can also manufacture custom die-cut Extreme Sealing gaskets and custom fabricated parts.

Uses for Extreme Sealing Tape

Additional Uses: Looking for a solution to your difficult sealing problems? Contact us today to spec in this product and find out if 3M Extreme Sealing Tape is a good fit for your application.

Endless Savings

Extreme Sealing Tape saves you time and money while reducing your carbon footprint. The convenient peel-and-stick application eliminates the need for additional labor and tools like caulking guns, that require storage and cleaning, and create unnecessary waste in the form of empty cartridges.

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