SilCool TIA225GF is a silicone 2K gap filler from Momentive, rated 2.5 W/m·K. Typical uses: Liquid-dispensed thermal pad cured in place to create heat path. Short answer: we dispense it with PRO-CPD20 pail system.
Recommended: PRO-CPD20 pail system.
Material at a glance
| Manufacturer | Momentive |
|---|---|
| Type | 2K gap filler |
| Chemistry | Silicone |
| Thermal conductivity | 2.5 W/m·K |
| Mix ratio | 100:100 by weight |
| Viscosity | 90 Pa·s (23 °C) |
| Cure | 30 min at 70 °C; work life 4 h at 23 °C |
From the manufacturer's published data (source). Always work from the current technical data sheet.
How we dispense it
We have run SilCool TIA225GF on Dispense Robotics equipment. Our recommendation is PRO-CPD20 pail system. 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 SilCool TIA225GF?
We have run SilCool TIA225GF 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 SilCool TIA225GF 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 SilCool TIA225GF 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 SilCool TIA225GF 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 SilCool TIA225GF, 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
- SilCool TIA2101GF · Momentive, 2K gap filler
- SilCool TIA241GF · Momentive, 2K gap filler
- SilCool TIA225GFB-25 · Momentive, 2K gap filler
- BERGQUIST GAP FILLER TGF 4000 · Henkel Bergquist, 2K gap filler
- BERGQUIST GAP FILLER TGF 3600 · Henkel Bergquist, 2K gap filler
- BERGQUIST GAP FILLER TGF 4400LVO · Henkel Bergquist, 2K gap filler (low volatility)
All thermal interface materials · Materials we've dispensed
SilCool TIA225GF is a trademark of Momentive or its affiliates. Dispense Robotics is not affiliated with the manufacturer; the name is used to describe the material our equipment dispenses.