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Silver thermal paste in a 3.5g syringe with plunger

Arctic Silver

Arctic Silver 5 AS5-3.5G Thermal Paste 3.5g syringe

SKU CH-RTYT-PZXSH

High-density silver and ceramic filler lowers CPU core temperatures by 3 to 12 degrees Celsius, and the 3.5 g syringe covers 15 to 25 small cores or 6 to 10 large cores

  • 9% pure silver filler for superior heat transfer
  • Non-conductive formula eliminates short-circuit risk on exposed pins
  • Stable compound will not separate, run or bleed over time
  • 3 to 12°C lower full-load core temperatures versus standard pastes
  • 5 g syringe covers 15 to 25 small CPU cores

Premium Silver Compound

Arctic Silver 5 is a high-density thermal compound containing 99.9% pure micronized silver and enhanced ceramic particles. It is formulated for enthusiasts and system builders who need reliable heat transfer between modern high-power CPUs and performance heatsinks or water-cooling solutions. The non-electrically conductive formula eliminates the risk of short circuits during application. Over 88% thermally conductive filler by weight ensures consistent performance.

Application Limits

The compound is optimised for a wide range of bond lines found in current CPU installations. It will not separate, run, migrate or bleed after application, maintaining stability through thermal cycles. Thermal conductance exceeds 350 000W/m2 degreesC at a 0.001 inch layer thickness. The material is easy to apply and remove, simplifying maintenance or upgrades without damaging components.

Coverage Capacity

A 3.5 gram syringe provides enough compound for at least 15 to 25 small CPU cores or 6 to 10 large CPU cores. It also covers 2 to 5 heat plates depending on size. At a 0.003 inch layer, the syringe covers approximately 16 square units of surface area. Users requiring coverage for larger arrays of processors or extensive cold-plate surfaces will need additional syringes.

How it compares

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

Price $21.99
Pricier than about 77% of the 498 comparable items (median $12.99).

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Specifications

Product
Brand nameArctic Silver
Product lineAS5-3.5G
Model nameAS5-3.5G

Questions about this item

How many CPU cores can the 3.5 g syringe cover?

A 3.5 g syringe covers 15 to 25 small CPU cores, 6 to 10 large CPU cores, or 2 to 5 heat plates at a 0.003 inch layer thickness.

What temperature drop does Arctic Silver 5 deliver versus standard compounds?

Testing shows 3 to 12 degrees Celsius lower CPU full-load core temperatures compared with standard thermal compounds or pads.

Is the paste electrically conductive and what is its thermal conductance?

It is non-electrically conductive and rated at over 350 000 W/m²°C for a 0.001 inch layer.

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