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3M™ Double Coated Tape 9731 – Bonding silicone rubber, foams, gaskets, filters, high-temperature, chemical-resistant industrial and medical applications

Item Name: 3M™ Double Coated Tape 9731
Manufacturer: 3M
Technologies: High-performance Acrylic 350 and silicone adhesives, double-coated tape, polyester film carrier
Color: Transparent
Cure Type: Pressure sensitive (self-adhesive, no curing required)
Package Size: Roll
Shelf Life: 12 Month

1. Product Overview
3M™ Double Coated Tape 9731 is a specialized adhesive solution combining high-performance acrylic and silicone adhesives on a thin polyester film carrier. Designed for challenging bonding tasks, it offers excellent adhesion to silicone rubbers, foams, and a wide variety of other substrates. The acrylic adhesive (3M™ 350) delivers exceptional chemical, solvent, UV, and high-temperature resistance, while the silicone adhesive provides strong bonding to silicone surfaces. With dual liners for stability, it ensures precision in die-cutting, lamination, and automated dispensing.

2. Applications

  • Gasketing in filters, heat exchangers, and fluid handling equipment

  • Bonding silicone foams and rubbers in industrial assemblies

  • Attaching preformed or replacement gaskets

  • Sealing and bonding in aerospace, automotive, and electronics sectors

  • Applications requiring both silicone and acrylic adhesion in demanding environments

3. Typical Properties

Property Value/Description
Adhesive Type Dual: Acrylic (3M™ Adhesive 350, face side) / Silicone (liner side)
Backing (Carrier) Material Polyester film (PET)
Carrier Thickness 0.025 – 0.03 mm
Adhesive Thickness Face: 0.033 – 0.041 mm; Back: 0.07 mm
Total Thickness (without liner) 0.05 – 0.14 mm
Liner System Primary: 58# polycoated kraft (tan, 0.11–0.17 mm); Secondary: PET film (0.07 mm)
Temperature Performance -40 °C to 121 °C
Resistance Excellent solvent, UV, and chemical resistance; strong holding power
Shelf Life 12 months (from date of manufacture)
Industries Aerospace, automotive, electronics, signage, appliances, medical, oil & gas, general industry

BERGQUIST microTIM mTIM 1028 Thermal Interface Coating High performance thermal management solution for nickel finished heat sinks, optical transceivers, and data center liquid cooling systems

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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