Extreme Sealing Tape | Part No. 4412N | 3M


Extreme Sealing Tape | Part No. 4412N | 3M

Sale price$295.00
Pickup available at Ashcon International Inc. Usually ready in 24 hours

Extreme Sealing Tape | Part No. 4412N | 3M

Ashcon International Inc.

Pickup available, usually ready in 24 hours

3425 Laird Road
Unit #4
Mississauga ON L5L 5R8

  • Translucent, 0.080 in (2.0 mm) thick tape is designed for difficult sealing applications
  • Sticks on contact to many metals, plastics, and other hard-to-stick-to surfaces
  • Provides immediate seal with no wait time or oozing associated with liquid sealants
  • Tough, yet flexible clear ionomer backing is abrasion resistant and instantly paintable
  • Acrylic adhesive provides excellent sealing qualities and good outdoor durability
  • This is a thicker version of 3M™ Extreme Sealing Tape 4411N

3M™ Extreme Sealing Tape 4412N is a translucent, highly conformable, single-sided, pressure sensitive acrylic adhesive tape with a high performance ionomer backing. It is an ideal solution for creating a watertight seal. It conforms over fasteners, seams, joints, holes, and gaps to ensure a long-lasting seal on a variety of substrates.

3M™ Extreme Sealing Tape 4412N is a translucent, 0.080 in (2.0 mm) thick tape featuring a flexible backing that easily conforms over screw heads, rivets, joints, splices, and other protrusions to provide protection from water intrusion. The durable, abrasion resistant backing makes this tape a good choice for outdoor applications where exposure to weather is a concern. Since it can be painted, you can match most existing colours to blend seamlessly into the surrounding area while retaining the water tight bond. The soft, yet thick acrylic adhesive adheres immediately, allowing for quick application and eliminating unnecessary downtime. This adhesive not only bonds instantly to a variety of substrates, but it also adheres well to itself in order to maintain a consistent seal while creating overlapping joints. A backside liner ensures easy handling and application of the tape. Ideal for heat sealing and waterproofing.


Adhesive Colour


Adhesive Type


Application Method

Apply by hand


Truck and trailer roof sealing, Window and door sealing, HVAC, Seam and Joint Sealing

Back Side Adhesive Thickness (Imperial)

4 Milli-inch (mil)

Back Side Adhesive Thickness (Metric)

0.1 mm

Backing (Carrier) Material


Backing Material


Backing Thickness (Imperial)

2 Milli-inch (mil)

Backing Thickness (metric)

0.05 mm



Core Size (Imperial)

3 in

Core Size (metric)

76.2 mm


51 lb/ft³

Elongation at Break


Foam Conformability





Construction, Signage, Metalworking, Transportation, Specialty Vehicle, General Industrial, MRO

Maximum Operating Temperature (Celsius)

38 °C

Maximum Operating Temperature (Fahrenheit)

100 °F

Minimum Operating Temperature (Celsius)

4 °C

Minimum Operating Temperature (Fahrenheit)

40 °F

Net Weight (Metric)

0.6 kg, 0.78 kg, 1.3 kg, 1.32 kg, 1.74 kg, 1.52 kg

Primary Liner


Primary Liner Colour


Primary Liner Thickness (Imperial)

2 Milli-inch (mil)

Primary Liner Thickness (Metric)

0.05 mm

Product Form


Shelf Life in Months (from date of manufacture)


Specifications Met

ASTM D-3330, ASTM D3759, ASTM D412 with Dogbone Die C

Tape Width (metric)

5.1 cm, 2.5 cm, 6.4 cm, 7.6 cm, 10.2 cm, 15.2 cm

Temperature Resistance To - Long Term (Metric)

90 °C

Temperature Resistance To - Short Term (metric)

150 °C

Tensile Strength (Imperial)

13.0 lb/in

Tensile Strength (metric)

87 Kilopascal

Total Tape Thickness without Liner (Imperial)

80 Milli-inch (mil)

Total Tape Thickness without Liner (metric)

2 mm

Overall Height (Metric)

2 mm

Overall Length (Imperial)

18 yd, 1 yd

Overall Length (Metric)

16.5 m, 165 m

Overall Thickness (Imperial)

80 Milli-inch (mil)

Overall Thickness (Metric)

2.03 mm

Overall Width (Imperial)

2 in, 1 in, 2.5 in, 3 in, 4 in, 6 in

Overall Width (Metric)

5.1 cm, 254 mm, 6.4 cm, 76 mm, 102 mm, 15.2 cm, 508 mm