BERGQUIST TGR 4000 (formerly TIC 4000) is a silicone thermal grease from Henkel Bergquist, rated 4.0 W/m·K. Typical uses: High performance computer processors; high watt density applications needing lowest thermal resistance. Short answer: we dispense it with a PCP progressive cavity pump.
Material at a glance
| Manufacturer | Henkel Bergquist |
|---|---|
| Type | Thermal grease |
| Chemistry | Silicone |
| Thermal conductivity | 4.0 W/m·K |
| Cure | non-curing |
From the manufacturer's published data (source). Always work from the current technical data sheet.
How we dispense it
For a single-component thermal compound we start with a PCP progressive cavity pump, fed from a cartridge for lab and low volume, or from a pail with a follower-plate pail pump for production. A progressive cavity pump meters by volume, so dot and bead size stay consistent. Pump size depends on your dot or bead size and cycle time.
- Abrasion: the ceramic filler that carries the heat wears pumps out. We use tungsten carbide rotors and wear-resistant stators and run the pump slowly, at 8 to 12 rpm, for long wear life.
- Feed: thick pastes don't flow to a pump on their own. Above cartridge volumes, a follower plate pushes the material out of the pail and keeps air out.
- Non-curing: there's nothing to purge, so the job is accurate, repeatable metering.
See our PCP progressive cavity pumps, or use the pump configurator.
Frequently asked questions
What pump should I use to dispense BERGQUIST TGR 4000 (formerly TIC 4000)?
For a single-component thermal compound we start with a PCP progressive cavity pump, fed from a cartridge for lab and low volume, or from a pail with a follower-plate pail pump for production. Pump size depends on your shot or bead size and cycle time; send us those and we will size it.
Can BERGQUIST TGR 4000 (formerly TIC 4000) be fed from pails instead of cartridges?
Cartridges suit lab and low volume. Above that, a follower-plate pail pump feeds the metering pump directly, which cuts container changes and waste.
Does BERGQUIST TGR 4000 (formerly TIC 4000) need mixing?
No. It is a single-component material, so there is no mixer and no ratio to hold. The job is accurate, repeatable volumetric metering, which is what a progressive cavity pump does.
Will BERGQUIST TGR 4000 (formerly TIC 4000) wear out the pump?
Thermally conductive fillers are abrasive. With tungsten carbide rotors, wear-resistant stators and pump speeds of 8 to 12 rpm, stators typically last 6 to 12 months and rotors up to 24 months, and a pump rebuild takes under an hour.
Talk it through with us
Running BERGQUIST TGR 4000 (formerly TIC 4000), or about to? Send us the technical data sheet, your bead or shot size and your cycle time, and we'll recommend a pump and feed system. We can run an application test on your material before you buy. Contact us
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- WACKER Paste P12 · Wacker, thermal grease
- X-23-8052 · Shin-Etsu, thermal grease
All thermal interface materials · Materials we've dispensed
BERGQUIST TGR 4000 (formerly TIC 4000) is a trademark of Henkel Bergquist or its affiliates. Dispense Robotics is not affiliated with the manufacturer; the name is used to describe the material our equipment dispenses.