Industries

Automotive
Composites
Electronics Assembly
General Industries
Home Appliances
Medical Device

BERGQUIST GAP FILLER TGF 3500LVO – Low Viscosity Thermally Conductive Gap Filler – Electronics and Power Modules

  • Item Name: BERGQUIST GAP FILLER TGF 3500LVO
  • Manufacturer: Henkel
  • Product Category: Thermal Interface Material (TIM)
  • Technologies: Silicone-based, two-part liquid gap filler
  • Applications: Lighting, automotive in-cabin electronics, medical electronics, industrial controls, optics
  • Color: Light blue (cured), Part A (blue), Part B (white)
  • Cure Type: Room temperature cure or heat cure
  • Package Size: Cartridges, kits (Contact Techniq VN for details)
  • Shelf Life: 6 months

1. Product Overview

  • Description: A thermally conductive, liquid gap filler material designed for thermal management applications.
  • Technology: Silicone-based.
  • Appearance: Light blue (cured), Blue (Part A), White (Part B).
  • Cure Type: Room temperature or heat cure.
  • Mix Ratio (by weight & volume): 1:1 (Part A: Part B).
  • Solids Content: 100%.
  • Operating Temperature Range: -60 to 200°C.
  • Features & Benefits:
    • Thermal conductivity of 3.5 W/m-K.
    • Low volatility for outgassing-sensitive applications.
    • Ultra-conforming with excellent wet-out for low-stress interface applications.
    • No cure by-products.
    • Forms a soft, form-in-place elastomer after curing.

2. Applications

  • Industries:

    • Lighting
    • Automotive in-cabin electronics
    • Medical electronics
    • Industrial controls
    • Optics
  • Application Methods:

    • Mixed and dispensed using dual-tube cartridge packs with static mixers and a manual or pneumatic gun.
    • Compatible with high-volume mixing and dispensing equipment.

3. Typical Properties

Uncured Properties

Property Value Test Method
Viscosity (1,500/sec, Part A & B) 45,000 mPa·s (cP) ASTM D5099
Density 3.1 g/cc ASTM D792
Working Time @ 25°C 240 minutes
Shelf Life @ 25°C 180 days

Cure Schedule

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

Cured Properties

Property Value Test Method
Hardness (Shore 00, 30-sec delay) 40 ASTM D2240
Heat Capacity 0.8 J/g-K ASTM E1269
Flammability UL 94 V-0
Siloxane Content (ΣD4-D10) 40 ppm

Electrical Properties

Property Value Test Method
Dielectric Strength 275 V/mil ASTM D149
Dielectric Constant (1,000 Hz) 8.0 ASTM D150
Volume Resistivity 1×10¹⁰ ohm-meter ASTM D257

Thermal Properties

Property Value Test Method
Thermal Conductivity 3.5 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.

RELATED PRODUCT

Contact Technical Support

Leave your information or connect via Hotline, and our expert team will reach out immediately to provide professional consultation and customized solutions.

(+84) 889 901 929

Email: info@techniq.vn

Our Technical Support Team is on hand from 8:30 AM to 5:30 PM (GMT+7).

For requests outside these hours, please submit your request form and we will respond at the earliest opportunity.