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Two silver-grey 3.5 g syringes of Arctic Silver 5 thermal compound

Arctic Silver

Arctic Silver 5 Thermal Paste 2 Pack 3.5g

SKU CH-E19B-3G916

Premium silver thermal compound reduces CPU temperatures by 3 to 12 degrees and each 3.5g tube covers 15 to 25 small cores

  • Premium silver compound maximises thermal transfer using 99.9 % pure silver particles
  • Non-electrically conductive formula prevents short-circuit risk on nearby traces and pins
  • Stable consistency will not separate, run, migrate or bleed over time
  • Lowers CPU full-load core temperatures by 3 to 12 degrees versus standard compounds
  • Twin 3.5 g tubes cover 20 to 30 small CPUs for multiple builds

Premium Silver Thermal Compound

Arctic Silver 5 is a premium silver polysynthetic thermal compound designed for use between CPUs and heatsinks or water-cooling solutions. The formula contains 99.9 % pure silver particles in three unique shapes and sizes to maximise particle-to-particle contact area and thermal transfer. It does not contain any silicone and will not separate, run, migrate or bleed over time. Each 3.5 gram tube covers 15 to 25 small CPU cores or 6 to 10 large CPU cores.

Application and Break-In Period

The compound is not electrically conductive, though it is slightly capacitive and should be kept away from electrical traces, pins and leads to avoid bridging close-proximity paths. Due to the unique particle matrix, the compound requires up to 200 hours and several thermal cycles to reach maximum performance. During this break-in period the material thins slightly to fill microscopic surface imperfections, so initial temperatures may be higher than final results.

Compatibility and Coverage Check

Verify that your CPU core size and mounting pressure suit the recommended coverage range of 15 to 25 small cores or 6 to 10 large cores per tube. Ensure the cooler base and processor heat spreader are clean and free of old compound residue before application. Buyers needing electrically non-capacitive paste or instant peak performance without a break-in period should consider alternative formulations.

How it compares

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

Price $29.99
Pricier than about 86% of the 498 comparable items (median $12.99).

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Specifications

Product
Brand nameArctic Silver

Questions about this item

How can I tell the Arctic Silver 5 paste is working properly after applying it to my CPU?

You should see CPU full-load core temperatures drop by 3 to 12 degrees centigrade compared with standard compounds once the 200-hour break-in period and several thermal cycles are complete.

What comes in the two-pack and is any extra tool or cleaner required?

The pack contains two 3.5 gram tubes of Arctic Silver 5; no additional tools or cleaners are included, so you will need isopropyl alcohol and a lint-free cloth to prepare the surfaces.

Which tube size should I choose if I have a small CPU core versus a large one?

Each 3.5 gram tube covers 15 to 25 small CPU cores or 6 to 10 large CPU cores, so a single tube is sufficient for multiple small-core applications but only a few large-core installations.

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