CGW3 thermal gap filler is a 2K gap filler from Sekisui Polymatech. Short answer: we dispense it with PRO-CPD20HF pail system.
Recommended: PRO-CPD20HF pail system, fed from a 20 L pail.
Material at a glance
| Manufacturer | Sekisui Polymatech |
|---|---|
| Type | 2K gap filler |
| Mix ratio | 1:1 vol |
| Viscosity | A 260,000 / B 240,000 mPa·s |
From Dispense Robotics test records and the manufacturer's published data. Always work from the current technical data sheet.
How we dispense it
We have run CGW3 thermal gap filler on Dispense Robotics equipment. Our recommendation is PRO-CPD20HF pail system, fed from a 20 L pail. Pump size still depends on your shot or bead size and cycle time, so send us those and we'll confirm.
- 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.
- Ratio: each side is metered by its own progressive cavity pump to within ±1%. Check ratio by weighing a shot from each side every week, because filled materials vary from batch to batch.
- Mixing: a disposable static mixer does the mixing. Purge or change it before the material's working life runs out.
- Dispense pattern: gap fillers are squeezed between the part and the housing, so the pattern (dots, lines or a star) decides coverage and whether air gets trapped.
See our PDP two-component metering pumps, or use the pump configurator.
Frequently asked questions
What pump should I use to dispense CGW3 thermal gap filler?
We have run CGW3 thermal gap filler on Dispense Robotics equipment. Pump size depends on your shot or bead size and cycle time; send us those and we will size it.
Can CGW3 thermal gap filler 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.
How do you keep CGW3 thermal gap filler on ratio?
Each side is metered by its own progressive cavity pump, held to within ±1% per side. We recommend a weekly check: weigh a shot from each side and adjust, because filled materials vary from batch to batch.
Will CGW3 thermal gap filler 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 CGW3 thermal gap filler, 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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All thermal interface materials · Materials we've dispensed
CGW3 thermal gap filler is a trademark of Sekisui Polymatech or its affiliates. Dispense Robotics is not affiliated with the manufacturer; the name is used to describe the material our equipment dispenses.