Deepcool Z3
- Thermal Conductivity:
- >3.5 W/mK
- Electrical Conductivity:
- Non-Conductive
- Operating Temp:
- -50 to 220 C
- Recommended Use:
- Mainstream CPU/GPU
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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: Deepcool Last updated: 2026-09-15
Deepcool Z3 (Non-Conductive/3.5 W/mK/Entry-Level General-Purpose Paste) Review
Deepcool Z3 is the entry point of Deepcool's numbered Z-series thermal paste lineup, a 1.5g silver-gray compound officially rated at greater than 3.5 W/mK for mainstream CPU and GPU cooler mounting.
We'll flag straight away that Deepcool's own product page states "Thermal Conductivity: >3.5 W/mK," while some third-party retailer listings for the same SKU quote a much lower 1.13-1.134 W/mK figure. We're using Deepcool's own official spec sheet as the source of truth here, but that discrepancy between manufacturer and retailer copy is worth knowing about before you buy on the number alone. What's consistent across sources is the temperature range (-50 to 220 C), the 73 cps viscosity, and the 1.5g net weight. Against Deepcool Z5 already in this catalog (3.0g, similarly officially rated >3.5 W/mK per Deepcool), Z3 is simply the smaller, cheaper tube for the same general-purpose tier.
Thermal Performance and Conductivity
Deepcool's official product page lists Z3 at greater than 3.5 W/mK. Some retailer listings for the same SKU cite a much lower figure (roughly 1.13 W/mK), so treat the exact number with some caution and compare listings before buying if the precise figure matters to you.
Compound Type and Composition
Deepcool markets Z3 as a silver-gray general compound but doesn't publish the specific particle chemistry (metal oxide, ceramic, etc.) on the official spec sheet.
Application and Consistency
At 73 cps, Z3 is a relatively easy-flowing paste for a syringe application, and Deepcool markets it as compatible with most polished CPU cooler surfaces.
Electrical Safety
Z3 is non-conductive, per Deepcool's official spec sheet.
Comparison to Sibling Products
Z3 sits below Z5, Z9 and Z10 (all already in this catalog) in package size and price point. If you just need a small tube for one CPU install, Z3 is the value pick in the Z-series; if you want more paste per tube, step up to Z5 or Z9.
Specifications
Application
| Viscosity | 73 Pa-s |
|---|
| Thermal Conductivity | 3.5 W/mK |
|---|---|
| Electrical Conductivity | Insulating |
| Package Size | 1.5 g net weight (6.5 g gross weight incl. syringe) |
| Recommended Use | Mainstream CPU/GPU |
| Material | Not officially disclosed by Deepcool beyond a silver-gray general compound |
| Operating Temperature | -50°C to +220°C |
| Paste Segment | Standard Paste |
| Min Operating Temp | -50 C |
| Max Operating Temp | 220 C |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Single-application, budget CPU cooler mounting
- Buyers who want Deepcool's official general-purpose compound at the lowest price point in the Z-series
Not for
- Buyers who need the exact thermal conductivity figure to match precisely across manufacturer and retailer listings
- Multiple applications from one tube (1.5g is a single-use quantity for most CPUs)
FAQs
What are the key specifications of the Deepcool Z3 (Non-Conductive/3.5 W/mK/Entry-Level General-Purpose Paste)?
The Deepcool Z3 (Non-Conductive/3.5 W/mK/Entry-Level General-Purpose Paste) is a thermal paste from Deepcool. Key specs: Form Paste, Material Not officially disclosed by Deepcool beyond a silver-gray general compound, Thermal Conductivity 3.5, Electrical Conductivity Non-Conductive, Recommended Use Mainstream CPU/GPU.
Will the Deepcool Z3 (Non-Conductive/3.5 W/mK/Entry-Level General-Purpose Paste) work with my current setup?
The Deepcool Z3 (Non-Conductive/3.5 W/mK/Entry-Level General-Purpose Paste) lists Thermal Conductivity is 3.5. 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 Deepcool Z3 (Non-Conductive/3.5 W/mK/Entry-Level General-Purpose Paste) best suited to?
It suits single-application, budget cpu cooler mounting, buyers who want deepcool's official general-purpose compound at the lowest price point in the z-series.
What are the drawbacks of the Deepcool Z3 (Non-Conductive/3.5 W/mK/Entry-Level General-Purpose Paste)?
It is a poor fit for buyers who need the exact thermal conductivity figure to match precisely across manufacturer and retailer listings, multiple applications from one tube (1.5g is a single-use quantity for most cpus).
Compare and read more
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