Thermal Grizzly PhaseSheet PTM
Expert rating8.2 / 10
- Model:
- Thermal Grizzly PhaseSheet PTM
- Compound Type:
- Phase-Change Pad
- Electrical Conductivity:
- Non-Conductive
- Package Size:
- 50x40mm sheet, 0.2mm thick, 2g net weight
- Recommended Use:
- CPU/GPU (Phase-Change, Reapplication-Free)
- Reapplication Interval:
- Rated for repeated thermal cycles without reapplication
- Safety Notes:
- Solid at room temperature
Consumercarts is reader-supported. Learn more
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Manufacturer: Thermal Grizzly Last updated: September 25, 2026
Thermal Grizzly PhaseSheet PTM Review
Thermal Grizzly PhaseSheet PTM is a phase-change thermal pad rather than a paste: solid at room temperature, it liquefies above 45C in use and conforms like a liquid, with very low pump-out over repeated thermal cycles and no reapplication needed. It is a Newegg top-20 bestseller in the thermal compound category.
Thermal Grizzly PhaseSheet PTM is a phase-change thermal pad rather than a paste: solid at room temperature, it liquefies above 45C in use and conforms like a liquid, with very low pump-out over repeated thermal cycles and no reapplication needed. It is a Newegg top-20 bestseller in the thermal compound category.
Thermal Performance and Conductivity
Thermal Grizzly does not publish a W/mK conductivity figure for PhaseSheet PTM. As a phase-change pad, its performance comes from conforming fully to the contact surfaces once it warms past 45C, rather than from a headline conductivity number.
Compound Type and Composition
PhaseSheet PTM is a phase-change material, not a paste. It is solid at room temperature, liquefies above 45C at operating temperature, and re-solidifies when the system cools. Per the datasheet it operates across -75C to 150C.
Application and Consistency
The pad ships as a 50x40mm sheet, 0.2mm thick with a 2g net weight, and is cut or placed to size rather than applied with a syringe. Full contact requires roughly 300-400N of mounting pressure, so cooler mounting pressure matters more than with a paste.
Electrical Safety
Fully non-conductive and insulating, PhaseSheet PTM carries none of the short-circuit risk associated with liquid metal compounds.
Longevity and Pump-Out Resistance
This is the pad's core selling point: it is rated for repeated thermal cycles without reapplication, with high pump-out resistance, making it a fit-and-forget option for CPUs and GPUs.
Who This Paste Is Actually For
CPU and GPU builds where reapplication is impractical. The pad is rated for repeated thermal cycles without needing to be replaced.
Builders who want paste-like contact without paste maintenance. It conforms like a liquid once warm but never dries out or pumps out like a conventional paste.
Not for setups with low mounting pressure. Full contact needs roughly 300-400N of mounting pressure per the datasheet.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating8.2 / 10
Thermal Grizzly's own phase-change pad, offering the same reapplication-free convenience as the category leader from an established brand.
Best for
- CPU and GPU builds where reapplication is impractical; the pad is rated for repeated thermal cycles without needing to be replaced.
- Builders who want paste-like contact without paste maintenance; it conforms like a liquid once warm but never dries out or pumps out like a conventional paste.
Not for
- Setups with low mounting pressure; full contact needs roughly 300-400N of mounting pressure per the datasheet.
Specifications
What these specs meanIdentity and form
| Brand | Thermal Grizzly |
|---|---|
| Model | Thermal Grizzly PhaseSheet PTM , PhaseSheet PTM |
Cure and durability
| Pump-Out Resistance | High |
|---|
| Compound Type | Phase-Change Pad |
|---|---|
| Electrical Conductivity | Insulating |
| Package Size | 50x40mm sheet, 0.2mm thick, 2g net weight |
| Recommended Use | CPU/GPU (Phase-Change, Reapplication-Free) |
| Reapplication Interval | Rated for repeated thermal cycles without reapplication |
| Safety Notes | Solid at room temperature; liquefies above 45C and needs roughly 300-400N of mounting pressure for full contact; operating range -75C to 150C per datasheet |