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White 20g tube of ceramic silicone thermal paste

STARTECH

STARTECH HEATGREASE20 20g thermal paste

SKU CH-SHE5-4YAG1 MPN HEATGREASE20

A 20 g ceramic-based thermal compound rated at 1.06 W/mK that fills microscopic gaps between a CPU and heatsink for improved heat transfer

  • Net content20g
  • Thermal conductivity1.06 W/mK
  • DetailsColor: White Bleed: <0.05% at 200 °C/24 h Evaporation: <0.00
  • Key featuresCeramic-based compound containing silicone Thermal conductiv

Weight White Thermal Paste

  • Improves CPU-to-heatsink heat transfer for cooler operation
  • Ceramic-based silicone compound is electrically non-conductive for safe use
  • Thermal conductivity of 1.06 W/mK enables efficient heat dissipation
  • Low bleed under 0.05% at 200°C for 24 hours maintains performance
  • 20g tube provides enough compound for multiple applications

20g Ceramic Thermal Paste

The StarTech HEATGREASE20 is a 20g tube of white ceramic-based compound designed to improve heat transfer between a CPU and heatsink. It uses silicone and metal oxide fillers to fill microscopic surface imperfections that trap air. The electrically non-conductive formula prevents short circuits if paste contacts surrounding components. It suits system builders and technicians performing CPU cooler installations or maintenance.

Simple Syringe Application

The paste dispenses from a tube directly onto the processor heat spreader for manual spreading or pressure mounting. Its ceramic-silicone consistency resists separation during storage and stays pliable during installation. Low bleed of under 0.05 percent after 24 hours at 200°C means minimal pump-out over thermal cycles. Evaporation loss stays below 0.001 percent under the same test, so reapplication intervals remain long.

Conductivity Limits for Standard Cooling

Thermal conductivity reaches 1.066 W/mK with resistance under 0.195 °C-m2/W, suitable for stock and moderate overclocking scenarios. The material cannot match the heat flow of liquid metal or high-end carbon pastes used in extreme cooling. Builders targeting maximum frequency headroom on high-wattage CPUs will need higher-conductivity alternatives. The compound contains no electrically conductive metals, eliminating bridging risk on exposed dies or substrates.

How it compares

Measured against everything we stock in Thermal Paste, at today’s prices. Recalculated every night.

Price $9.99
Cheaper than about 70% of the 498 comparable items (median $12.99).

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Specifications

Product
Brand nameStarTech.com
Model nameHEATGREASE20
Performance
Thermal conductivity1.06 W/mK
Size & build
Net content20g
Shipping weight0.03 kg
Package size149 × 84 × 25 mm

Other versions of this model

1 more in the same range

Questions about this item

How can I verify the thermal paste is working correctly after applying it to the CPU?

Monitor CPU temperatures under load; effective heat transfer between the processor and heatsink should keep the CPU running cooler.

What does the 20g tube contain and is a spreader tool included?

The tube holds 20g of white ceramic-based compound made of 50% silicone, 30% metal oxide and 20% carbon compounds; no spreader tool is included.

Is the 20g size sufficient for multiple CPU installations or should I buy a larger tube?

The 20g volume provides enough compound for several applications depending on the amount used per CPU.

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