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UTP-6 Thermal Putty, Cooling Pad for GPU VGA IC Processor (50g) | 12.8W/mk Thermal Conductivity, Fast Heat Dissipation, Perfect Replacement for Traditional Thermal Pads
UPSIREN

UPSIREN UTP-6 Thermal Putty

Bottom line: The UPSIREN UTP-6 Thermal Putty: 12.8 W/mK conductivity, well above typical 3-6 W/mK GPU thermal pads; main trade-off: explicitly not a CPU thermal paste substitute, limiting its use cases.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

Pros & Cons

Pros

  • ✓ 12.8 W/mK conductivity, well above typical 3-6 W/mK GPU thermal pads
  • ✓ Fills irregular gaps completely, no pad-thickness guesswork on VRAM or VRM
  • ✓ Fully cured formula that will not dry out or pump out over time
  • ✓ RoHS compliant and halogen-free for restricted-substance builds

Cons

  • ✗ Explicitly not a CPU thermal paste substitute, limiting its use cases
  • ✗ Low viscosity means messy application without a stencil or dispenser
  • ✗ Strong heat-sink adhesion makes future teardowns harder to clean up
  • ✗ No listed thickness or gap-range guidance for first-time GPU repadders

Manufacturer description

It cannot be used as silicone grease on CPUs. This high-performance, fully cured thermal management material is designed for electronic assemblies and will not dry out. Featuring low viscosity for dispensing applications, it offers great adhesion to heat sinks and works well with auto-dispensing equipment or stencil screen-printing. Ideal for rework and field repair scenarios. Unlike traditional thermal pads, this material fully fills gaps with reliable compressibility to cut costs. It meets RoHS standards and is halogen-free, offering safety assurance for applications prohibiting hazardous…

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SpecPicks Verdict

SpecPicks scored UPSIREN UTP-6 Thermal Putty using a rating × review-volume × price-fit model applied to published specs and reviews across the cooling & fans category. UPSIREN's cooling & fans lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for cooling & fans of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • Application Notice: Not for use as silicone grease on CPUs. It is a high-performance, fully cured thermal management material for electronic assemblies and will not dry out over time.
  • Dispensing Performance: Features low viscosity suitable for dispensing. Excellent adhesion to heat sinks and compatible with auto-dispensing equipment & stencil screen-printing.
  • Wide Usages: Perfect for rework and field maintenance. Compared with thermal pads, it fills gaps completely with good compressibility and reduces overall costs.
  • Safety Standard: RoHS compliant and halogen-free. Safe to apply in projects that restrict hazardous substances.

Full Specifications

Brand‎UPSIREN
Weight50g
Wide UsagesPerfect for rework and field maintenance. Compared with thermal pads, it fills gaps completely with good compressibility and reduces overall costs.
Safety StandardRoHS compliant and halogen-free. Safe to apply in projects that restrict hazardous substances.
Package Dimensions‎4.13 x 2.87 x 1.97 inches
Full listing titleUTP-6 Thermal Putty, Cooling Pad for GPU VGA IC Processor (50g) | 12.8W/mk Thermal Conductivity, Fast Heat Dissipation, Perfect Replacement for Traditional Thermal Pads

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UTP-6 Thermal Putty, Cooling Pad for GPU VGA IC Processor (50g) | 12.8W/mk Thermal Conductivity, Fast Heat Dissipation, Perfect Replacement for Traditional Thermal Pads is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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UTP-6 Thermal Putty, Cooling Pad for GPU VGA IC Processor (50g) | 12.8W/mk Thermal Conductivity, Fast Heat Dissipation, Perfect Replacement for Traditional Thermal Pads
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