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3M™ Extreme Sealing Tape 4411B – Acrylic PSA tape for sealing roofs, windows, doors, HVAC, gutters, outdoor use

Item Name: 3M™ Extreme Sealing Tape 4411B
Manufacturer: 3M
Technologies: Acrylic pressure-sensitive adhesive (PSA) with ionomer backing
Color: Black
Cure Type: Pressure sensitive (self-adhesive, no curing required)
Package Size: Roll
Shelf Life: 12 months

1. Product Overview

3M™ Extreme Sealing Tape 4411B is a black, single-sided, pressure-sensitive acrylic adhesive tape reinforced with a high-performance ionomer backing. With a thickness of 1.0 mm, it conforms easily over fasteners, seams, joints, holes, and gaps to form a durable watertight seal. The abrasion-resistant, flexible structure provides excellent outdoor durability, while the paintable surface allows for seamless integration into surrounding environments. Designed to adhere instantly without oozing, it eliminates wait times typical of liquid sealants, delivering a reliable and long-lasting sealing solution for challenging applications.


2. Applications

  • Truck and trailer roof sealing

  • Window and door sealing

  • HVAC joints and seams

  • Gutters and metal overlaps

  • Industrial and construction panel sealing

3. Typical Properties

Property Value / Description
Adhesive Type & Color Acrylic adhesive, black
Backing Material & Thickness Ionomer film, 0.05 mm
Total Tape Thickness (no liner) 1.0 mm
Adhesive Thickness 0.1 mm
Tensile Strength 87 kPa
Elongation at Break 4%
Operating Temperature Range +4 °C to +38 °C
Liner Material & Thickness Polyester film, matte, 0.05 mm
Shelf Life 12 months from manufacture
Color Black, instantly paintable
Product Form Roll; available widths: 38.1 mm, 51 mm, 610 mm
Available Lengths 1.49 m, 32.9 m, or 33 m
Case Quantity 6 rolls per case
Suitable Industries Transportation, Construction, Signage, Metalworking, Specialty Vehicle, General Industrial

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BERGQUIST microTIM mTIM 1028 is purpose built for riding cage assemblies in servers, switches, and routers, interfacing with electroless nickel plated copper or aluminum heat sinks. It ensures stable operation in high power transceiver modules while also extending applicability to liquid cooling components, heat pipes, and fin based dissipative structures.

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