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BERGQUIST GAP FILLER TGF 1450 – Thermally Conductive Gap Filler – Electronics and Power Module Thermal Management

  • Item Name: BERGQUIST GAP FILLER TGF 1450
  • Manufacturer: Henkel
  • Product Category: Thermally Conductive Gap Filler
  • Technologies: Silicone-based, thermally conductive liquid gap filler
  • Applications: Automotive electronics (HEV, NEV, batteries), lighting
  • Color: Blue (cured), Part A – Blue, Part B – Light Blue
  • Cure Type: Heat cure or room temperature cure
  • Package Size: Contact Techniq VN for details
  • Shelf Life: 6 months

1. Product Overview

BERGQUIST GAP FILLER TGF 1450 is a two-part, high-performance, thermally conductive liquid gap filler designed for thermal management applications. It features a shear-thinning viscosity for easy dispensing and offers low stress on sensitive components. The material cures at room temperature or can be accelerated with heat curing.

Key Features & Benefits:

  • Thermal conductivity: 1.5 W/m-K
  • Ultra-conforming with excellent wet-out for near-zero interface stress
  • No cure by-products
  • Low density, ideal for weight-sensitive applications
  • High-temperature stability from -60°C to 175°C
  • Flame retardant (UL 94 V-0)
  • Available with or without glass beads

2. Applications

  • Automotive electronics (HEV, NEV, batteries)
  • Lighting
  • General thermal interface applications requiring high-performance gap filling

3. Typical Properties

Uncured Material

Property Test Method Value
Viscosity (High Shear, 3,000 s⁻¹) ASTM D5099 30 Pa∙s
Viscosity (Low Shear, 1 s⁻¹) ASTM D2196 200 Pa∙s
Density ASTM D792 1.85 g/cc
Pot Life @ 25°C ASTM D4473 60 minutes

Cure Schedule

Temperature Time
25°C 5 hours
100°C 10 minutes
Alternate 100°C Cure 30 minutes

Cured Material Properties

Property Test Method Value
Hardness (Shore 00, 30s delay) ASTM D2240 40
Heat Capacity ASTM D1269 1.0 J/g-K

Electrical Properties

Property Test Method Value
Dielectric Strength ASTM D149 275 V/mil
Dielectric Constant @ 1,000Hz ASTM D150 6.4
Volume Resistivity ASTM D257 1×10¹⁰ ohm-meter

Thermal Properties

Property Test Method Value
Thermal Conductivity ASTM D5470 1.5 W/m-K

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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