Tputty 508 is a silicone 1K dispensable gap filler from Laird, rated 3.7 W/m·K. Typical uses: Telecom/datacom, automotive ADAS and ECUs, consumer, industrial, aerospace (family-level list). Short answer: we dispense it with PCPM-1000HF.
Recommended: PCPM-1000HF, fed from a 170 cc cartridge.
Material at a glance
| Manufacturer | Laird |
|---|---|
| Type | 1K dispensable gap filler |
| Chemistry | Silicone |
| Thermal conductivity | 3.7 W/m·K |
From the manufacturer's published data (source). Always work from the current technical data sheet.
How we dispense it
We have run Tputty 508 on Dispense Robotics equipment. Our recommendation is PCPM-1000HF, fed from a 170 cc cartridge. 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.
- 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.
See our PCP progressive cavity pumps, or use the pump configurator.
Frequently asked questions
What pump should I use to dispense Tputty 508?
We have run Tputty 508 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 Tputty 508 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 Tputty 508 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 Tputty 508 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 Tputty 508, 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
- Tflex CR350S · Laird, 2K gap filler
- Tputty 607MF · Laird, 1K dispensable gap filler
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- Tputty 607 · Laird, 1K dispensable gap filler
- Tputty 403 · Laird, 1K dispensable gap filler
All thermal interface materials · Materials we've dispensed
Tputty 508 is a trademark of Laird or its affiliates. Dispense Robotics is not affiliated with the manufacturer; the name is used to describe the material our equipment dispenses.