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BERGQUIST GAP FILLER TGF 1400SL

  • Item Name: BERGQUIST GAP FILLER TGF 1400SL
  • Manufacturer: Henkel
  • Product Category: Thermally Conductive Gap Filler
  • Technologies: Silicone-based, liquid gap filling material
  • Applications: Automotive electronics, telecommunications, semiconductor encapsulation, power supplies, lighting, and silicone-sensitive applications
  • Color: Yellow (cured), Yellow (Part A), White (Part B)
  • Cure Type: Room temperature cure (24h @ 25°C) or Heat cure (30min @ 100°C)
  • Package Size: Kits (1,200cc), Pail (7-gallon)
  • Shelf Life: 6 months

1. Product Overview

BERGQUIST GAP FILLER TGF 1400SL is a two-part, thermally conductive, silicone-based liquid gap filler with extremely low viscosity. It provides excellent thermal transfer, self-leveling properties, and a soft, vibration-dampening cured form. This material is designed for use in applications requiring thermal interface materials (TIM) with minimal stress to components.

Key Features:

  • Thermal Conductivity: 1.4 W/m-K
  • Self-leveling and very soft
  • Vibration dampening
  • Low natural tack (not for structural bonding)

2. Applications

  • Automotive electronics (HEV, NEV, battery systems)
  • Telecommunications
  • Encapsulation of semiconductors & magnetic components with heatsinks
  • Silicone-sensitive applications
  • Lighting
  • Power supplies

3. Typical Properties

Uncured Material

Property Value Test Standard
Mixed Viscosity 5,000 mPa·s (cP) ASTM D2196
Density 2.5 g/cc ASTM D792
Working Time (@25°C) 120 minutes
Shelf Life (@25°C) 180 days

Cure Schedule

Cure Condition Time
Room Temperature Cure 24 hours @ 25°C
Heat Cure 30 minutes @ 100°C

Cured Material

Property Value Test Standard
Hardness (Shore 00) 40 ASTM D2240
Heat Capacity 0.9 J/g-K ASTM E1269
Flammability Rating V-0 UL 94
Siloxane Content (ΣD4-D10) 40 ppm

Electrical Properties

Property Value Test Standard
Dielectric Strength 250 V/mil ASTM D149
Dielectric Constant (@1,000 Hz) 6.0 ASTM D150
Volume Resistivity 1×10¹¹ ohm-meter ASTM D257

Thermal Properties

Property Value Test Standard
Thermal Conductivity 1.4 W/(m-K) ASTM D5470

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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