DOWSIL TC-3065 Thermal Gel is a silicone 1K thermal gel from Dow, rated 6.5 W/m·K. Typical uses: Optical transceivers, Ethernet switches/routers, high-speed SSDs, telecom/datacom PCB assemblies. Short answer: we dispense it with a PCP progressive cavity pump.
Material at a glance
| Manufacturer | Dow |
|---|---|
| Type | 1K thermal gel |
| Chemistry | Silicone |
| Thermal conductivity | 6.5 W/m·K |
| Cure | Heat cure 30 min at 100 °C or 60 min at 80 °C (or component heat); ~5 days open time at RT; reworkable |
From the manufacturer's published data (source). Always work from the current technical data sheet.
How we dispense it
For a single-component thermal gel 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.
- Heat cure: the material is stable at room temperature in the pump and cures in the oven after assembly.
See our PCP progressive cavity pumps, or use the pump configurator.
Frequently asked questions
What pump should I use to dispense DOWSIL TC-3065 Thermal Gel?
For a single-component thermal gel 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 DOWSIL TC-3065 Thermal Gel 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 DOWSIL TC-3065 Thermal Gel 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 DOWSIL TC-3065 Thermal Gel 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 DOWSIL TC-3065 Thermal Gel, 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
Related materials
- DOWSIL TC-4060 GB250 Thermal Gel · Dow, 2K thermal gel
- DOWSIL TC-3120 Thermal Gel · Dow, 1K thermal gel
- BERGQUIST LIQUI FORM TLF LF2000 (Liqui-Form 2000) · Henkel Bergquist, 1K thermal gel
- BERGQUIST LIQUI FORM TLF LF3500 (Liqui-Form 3500) · Henkel Bergquist, 1K thermal gel
- BERGQUIST LIQUI FORM TLF 6000HG · Henkel Bergquist, 1K thermal gel
- BERGQUIST LIQUI FORM TLF 10000 · Henkel Bergquist, 1K thermal gel
All thermal interface materials · Materials we've dispensed
DOWSIL TC-3065 Thermal Gel is a trademark of Dow or its affiliates. Dispense Robotics is not affiliated with the manufacturer; the name is used to describe the material our equipment dispenses.