ID-COOLING

ID-Cooling Frost X45

Expert rating8.8 / 10

Model:: Frost X45
Compound Type:: Silicone-Based
Thermal Conductivity:: 15.2 W/mK
Electrical Conductivity:: Non-Conductive
Package Size:: 2g or 4g syringe
Recommended Use:: High-end CPU/GPU
Operating Temperature:: -50C to 300C

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Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.

Manufacturer: ID-COOLING Last updated: September 15, 2026

Where to buy

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ID-Cooling Frost X45 Review

ID-Cooling Frost X45 is the brand's enthusiast-tier thermal paste, rated 15.2 W/mK, silicone oil-based with nano particles.

Tech4Gamers and EnosTech both clocked it matching or slightly beating premium competitors like Thermal Grizzly Kryonaut in real-world testing, at a noticeably lower price.

Thermal Performance and Conductivity

15.2 W/mK is ahead of Thermalright TFX (14.3 W/mK) and Noctua NT-H2 (9.0 W/mK) on paper, and reviewers found it holds up in practice against pricier names.

Compound Type and Composition

Silicone oil-based with nano particles, non-conductive, non-curing, rated for -50C to 300C operating range with a density of 2.8 g/cm3.

Application and Consistency

140 Pa·s viscosity gives it a thick, stable consistency under mounting pressure, sold in 2g or 4g syringes.

Comparison to Alternatives

Against Thermal Grizzly Kryonaut, EnosTech found Frost X45 matching or slightly exceeding it while costing noticeably less, a legitimate budget-flagship alternative rather than a downgrade.

Our verdict

Reviewed by Burooj Alam. Rated by us, not by users.

Expert rating8.8 / 10

One of the best-performing pastes on air cooling in independent testing, though its thick consistency takes practice to spread well.

Best for

Enthusiasts and overclockers who want flagship-adjacent numbers without paying flagship prices.

Not for

Builders who specifically want an established brand name over a value pick, TFX or Kryonaut carry more brand recognition.

Specifications

What these specs mean

Identity and form

Brand	ID-Cooling
Model	Frost X45

Thermal performance

Conductivity Source	https://www.idcooling.com/product/list?category_parent=69

Electrical and board risk

Paste Segment	Standard Paste

Application

Viscosity	140 Pa-s

Operating envelope

Min Operating Temperature	-50 C
Max Operating Temperature	300 C

Quantity, volume versus weight

Density	2.8 g/cm3

Compound Type	Silicone-Based
Thermal Conductivity	15.2 W/mK
Electrical Conductivity	Insulating
Package Size	2g or 4g syringe
Recommended Use	High-end CPU/GPU

FAQs

What are the key specifications of the ID-Cooling Frost X45 (Silicone-Based/Non-Conductive/15.2 W/mK Enthusiast Paste)?

Key specs for the ID-Cooling Frost X45: Thermal Conductivity 15.2 W/mK, Thermal Conductivity Source https://www.idcooling.com/product/list?category_parent=69, Compound Type Silicone-Based, Electrical Conductivity Insulating, Operating Temperature -50C to 300C, Density 2.8 g/cm3.

Will the ID-Cooling Frost X45 (Silicone-Based/Non-Conductive/15.2 W/mK Enthusiast Paste) work with my current setup?

The ID-Cooling Frost X45 (Silicone-Based/Non-Conductive/15.2 W/mK Enthusiast Paste) lists Thermal Conductivity is 15.2 W/mK. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.

Who is the ID-Cooling Frost X45 (Silicone-Based/Non-Conductive/15.2 W/mK Enthusiast Paste) best suited to?

Best suited to: Enthusiasts and overclockers who want flagship-adjacent numbers without paying flagship prices.

What are the drawbacks of the ID-Cooling Frost X45 (Silicone-Based/Non-Conductive/15.2 W/mK Enthusiast Paste)?

Not the best fit for: Builders who specifically want an established brand name over a value pick, TFX or Kryonaut carry more brand recognition.