Thermal Grizzly Brings New PhaseSheet PTM Pro With Improved Conductivity

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Thermal Grizzly debuts PhaseSheet PTM Pro, a phase-change thermal pad with higher conductivity and improved gap-filling behavior for hot GPUs.

Quick Report

Thermal Grizzly has introduced PhaseSheet PTM Pro, a new phase-change thermal pad with improved thermal conductivity and a revised carrier film for better handling under load. The company says the material is meant to address the heat-spread and pump-out problems that can appear when a GPU cooler and silicon die expand at different rates during heavy operation.

The new PTM sheet remains solid at room temperature and only begins to liquefy above roughly 45°C, which is intended to let it spread evenly across the die once the system warms up. In practical terms, the aim is simpler: keep contact pressure more stable while letting the material fill microscopic gaps and help move heat away from hot components more effectively.

The announcement matters because GPU coolers are increasingly being pushed to high power densities, and materials that can tolerate that thermal drift without pumping out are becoming more important. Thermal Grizzly is positioning PTM Pro as a more refined option for enthusiasts and builders who want better long-term fill and lower thermal resistance in demanding configurations.

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Source(s)

  • TPU