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DOWSIL™ 844 RTV Adhesive Sealant – Adhesive/Sealant – Bonding and sealing of modules and multi-component assemblies

  • Item Name: DOWSIL™ 844 RTV Adhesive Sealant
  • Manufacturer: Dow Chemical Company
  • Technologies: One-part, non-flowing moisture cure adhesive
  • Color: Not specified
  • Cure Type: Room temperature moisture cure
  • Package Size: Contact to Techniq VN for details.
  • Shelf Life: 12 months

1. Product Overview

DOWSIL™ 844 RTV Adhesive Sealant is a one-part, non-flowing, moisture cure adhesive designed for fast room-temperature curing with high green strength and durable adhesion to a variety of substrates. It features a neutral alkoxy cure system and high elongation for stress relief.


2. Applications

  • Bonding/sealing of modules and multi-component assemblies
  • Formed-in-place gasketing
  • Suitable for automated or manual dispensing systems

3. Typical Properties

Property Unit Result
Extrusion Rate g/min 120
Flow – Slump cm ≤ 0.2 (0.6)
Tack-Free Time (25°C, 40% RH) minutes 25
Specific Gravity 1.35
Tensile Strength psi / MPa 320 / 2.2
Elongation % 400
Tensile Modulus psi / MPa 100 / 0.69
Tear Strength (Die B) ppi 35
Unprimed Adhesion – Lap Shear to Aluminum psi / MPa 180 min / 1.25
Durometer Hardness Shore A 37
Shelf Life months 12

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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