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Grey thermal putty in a 50g syringe tube

UPSIREN

UPSIREN UTP-8 50g Thermal Putty 14.8W/mk

SKU CH-E5K2-JY98G

High-conductivity 14.8W/mk thermal putty, 50g, non-conducting and stable from -55 to 200°C for GPU and IC gap-filling

  • Volume / Net Weight50g
  • Thermal Conductivity14.8W/mk
  • Long Term Operating Temperature-55 to 200 C
  • Featuresnon-conducting

Weight 50 g

  • High thermal conductivity at 14.8 W/mK for efficient heat transfer
  • Non-conductive formula prevents electrical short circuits on sensitive components
  • Wide operating range from -55 °C to 200 °C suits extreme environments
  • Fully cured putty never dries out ensuring long-term reliability
  • 50 g syringe enables precise dispensing for rework and automated application

High-conductivity thermal putty for GPU

UPSIREN UTP-8 is a 50g thermal putty rated at 14.8W/mk, designed for graphics card memory, processor ICs and similar components. It is not intended for use as silicone grease on a CPU die. The material stays tacky and does not dry out, making it suitable for rework, field repair and automated dispensing or screen-printing processes.

Stable across a wide temperature range

The putty operates continuously from -55 to 200 C without drying or losing consistency. Its non-conducting formulation eliminates the risk of electrical shorts if the material bridges adjacent contacts. Because it fully fills gaps under compression, it can replace thermal pads in many situations while reducing air pockets that impede heat flow.

RoHS-compliant and halogen-free for regulated builds

The compound meets RoHS and halogen-free standards, supporting projects with hazardous-substance restrictions. Good tack on the heatsink surface helps the material stay in place during assembly and vibration. Supplied as a 50g volume, it provides enough material for multiple GPU or IC applications without the mess of traditional grease.

Highlights

  • High thermal conductivity at 14.8 W/mK for efficient heat transfer
  • Non-conductive formula prevents electrical short circuits on sensitive components
  • Wide operating range from -55 °C to 200 °C suits extreme environments
  • Fully cured putty never dries out ensuring long-term reliability
  • 50 g syringe enables precise dispensing for rework and automated application

Specifications

BrandUPSIREN
SeriesUTP-8
ModelUTP-8 50G
Volume / Net Weight50g
Thermal Conductivity14.8W/mk
Long Term Operating Temperature-55 to 200 C
Featuresnon-conducting

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Questions about this item

How do I apply the UTP-8 putty to a GPU die, and what is the common mistake to avoid?

Dispense a thin, even layer directly onto the die using the syringe; the putty’s low viscosity lets it flow into gaps. The common mistake is using it on a CPU — the manufacturer states it cannot be used as silicone grease on the CPU.

Will the 50 g tub of UTP-8 putty dry out or need replacement after long-term use?

No. The putty is fully cured and non-drying, so it maintains its 14.8 W/m·K conductivity across the -55 °C to 200 °C operating range without degradation. It does not require periodic replacement like conventional grease.

At what temperature does the UTP-8 putty hit its thermal limit during sustained heavy loads?

The putty is rated for continuous operation up to 200 °C. That is the first hard limit reached under sustained use; beyond this temperature the material’s specified performance is no longer guaranteed.

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