Deepcool

Deepcool Z5 PRO

Thermal Conductivity:: 4 W/mK
Electrical Conductivity:: Non-Conductive
Operating Temp:: -50 to 220 C
Recommended Use:: Mainstream CPU/GPU

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Manufacturer: Deepcool Last updated: 2026-09-15

Deepcool Z5 PRO (Non-Conductive/4 W/mK/Non-Curing Mainstream Paste) Review

Deepcool Z5 PRO is a 2025 refresh of the Z5 compound, a 3g non-curing, non-corrosive thermal paste officially rated at 4 W/mK for maintaining optimal CPU and GPU temperatures under heavy loads.

Z5 PRO gives you double the grease weight of Z3 PRO (3g vs 1.5g) at the identical officially rated 4 W/mK conductivity, same 2.3 g/cm3 density and same -50 to 220 C range, so the two PRO compounds are really the same formula in two package sizes. That makes Z5 PRO the better per-application value if you're doing more than one install or reapplying periodically. It's still a mainstream-tier paste rather than a DS7/DS9-class high-end compound, so don't expect it to compete with Deepcool's specialist-grade lines on raw thermal conductivity.

Thermal Performance and Conductivity

Officially rated at 4 W/(m·K), identical to Z3 PRO, and well below Deepcool's own DS7 (6.9 W/mK) and DS9 (6.5 W/mK) compounds.

Compound Type and Composition

Deepcool markets Z5 PRO on its non-curing, non-corrosive formula, matching the same marketing language used for Z3 PRO; the specific compound chemistry isn't published.

Application and Consistency

Deepcool markets the density as optimized to adapt to polished CPU cooler surfaces for maximum contact.

Electrical Safety

Non-conductive, per Deepcool's official spec sheet.

Comparison to Sibling Products

Z5 PRO and Z3 PRO are the same conductivity tier, differing only in grease weight (3g vs 1.5g). Pick Z5 PRO if you want more paste for the same per-tube conductivity, or want to make more than one application.

Specifications

Quantity, volume versus weight

Density	2.3 g/cm3

Thermal Conductivity	4 W/mK
Electrical Conductivity	Insulating
Package Size	3 g grease weight (7.3 g net weight incl. syringe)
Recommended Use	Mainstream CPU/GPU
Material	Not officially disclosed by Deepcool
Operating Temperature	-50°C to +220°C
Paste Segment	Standard Paste
Curing	Non-Curing
Min Operating Temp	-50 C
Max Operating Temp	220 C

Expert Review

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

Best for

Mainstream builds wanting more grease per tube than Z3 PRO offers
Multiple applications or periodic reapplication from a single tube

Not for

High-end or overclocked builds wanting DS7/DS9-tier conductivity
Single, one-off CPU installs where the smaller Z3 PRO tube is enough

FAQs

What are the key specifications of the Deepcool Z5 PRO (Non-Conductive/4 W/mK/Non-Curing Mainstream Paste)?

The Deepcool Z5 PRO (Non-Conductive/4 W/mK/Non-Curing Mainstream Paste) is a thermal paste from Deepcool. Key specs: Form Paste, Material Not officially disclosed by Deepcool, Thermal Conductivity 4, Electrical Conductivity Non-Conductive, Recommended Use Mainstream CPU/GPU.

Will the Deepcool Z5 PRO (Non-Conductive/4 W/mK/Non-Curing Mainstream Paste) work with my current setup?

The Deepcool Z5 PRO (Non-Conductive/4 W/mK/Non-Curing Mainstream Paste) lists Thermal Conductivity is 4. 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 Z5 PRO (Non-Conductive/4 W/mK/Non-Curing Mainstream Paste) best suited to?

It suits mainstream builds wanting more grease per tube than z3 pro offers, multiple applications or periodic reapplication from a single tube.

What are the drawbacks of the Deepcool Z5 PRO (Non-Conductive/4 W/mK/Non-Curing Mainstream Paste)?

It is a poor fit for high-end or overclocked builds wanting ds7/ds9-tier conductivity, single, one-off cpu installs where the smaller z3 pro tube is enough.