Arctic Silver 5 AS5-3.5G Thermal Paste
- 3.5 g of polysynthetic silver thermal compound
- Three silver particle shapes and sizes for contact area
- Universal heatsink compatibility per the listing
- No separation, running, migration or bleed, per the description
Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A silver-particle thermal compound for CPU-to-cooler contact. The listing is thin on application and cure detail, so follow the maker's own instructions.
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ASIN: B0087X728KModel: AS5-3.5GCategory: Thermal Paste & Pads
Overview
Between a processor and its cooler base, this high-density polysynthetic compound fills the join with pure silver particles in three shapes and sizes. The mix is meant to maximize particle-to-particle contact and so improve heat transfer and long-term stability.
The reason to choose it is the silver-particle formula and a description that says it holds its shape over time. It comes as a small quantity of compound only, with no spreader or cleaning kit named. Data lines that mention a gasket do not describe this product.
Who it's for
A builder reseating a cooler or assembling a new desktop will use a small quantity once or twice. Anyone who wants a pad, a gasket or a bulk supply should buy a different item.
Pros and cons
- Silver particles in three shapes and sizes
- Universal heatsink compatibility listed
- Described as stable over the long term
- Compound only, nothing extra to sort
- Application steps and cure time not listed
- Small quantity per package
- Stray gasket line in the data does not apply
Performance notes
Thermal compound works by filling microscopic gaps so heat crosses from processor to cooler through the paste instead of air. Particles of different shapes and sizes pack closer together, which raises contact area and heat transfer according to the maker. A thin even layer, applied to a clean surface, is what separates a good result from a poor one.
Where it stands among thermal paste & pads
- #5 most-searched brand and model of the 15 thermal paste & pads lines we track (by search demand, not sales).
From the specs of the 15 thermal paste & pads we list; not a test result.
Specifications
| Brand | Arctic Silver |
|---|---|
| Model | AS5-3.5G |
| Material Type | Polysynthetic silver compound |
| Number of Items | 1 |
| Included Components | Arctic Silver compound |
| Net quantity | 3.5 g |
| Cooler compatibility | Universal |
Closest rivals on specs
Thermal Grizzly Duronaut 2 Gram Thermal Paste- Item Weight 0.01 vs 0 pounds (+150%)
Frequently asked questions
Is Arctic Silver 5 a thermal pad or gasket?
No. It is a thermal compound. The item highlight line in the data mentions NBR material and a spare gasket, but the description and included components list only the compound.
What is Arctic Silver 5 made of?
The description calls it a high-density polysynthetic silver thermal compound, using three unique shapes and sizes of pure silver particles.
Will Arctic Silver 5 separate or run over time?
The description states it will not separate, run, migrate or bleed.
How much compound is in the package?
The listing gives 3.5 g and one item. It does not name applicator tools.