Zalman

Zalman ZM-STC10

Expert rating6.1 / 10

Material:: Silicone-Based (Zinc Oxide / Aluminum Oxide filled)
Thermal Conductivity:: 11.5 W/mK
Electrical Conductivity:: Non-Conductive
Recommended Use:: Mainstream CPU/GPU

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Manufacturer: Zalman Last updated: 2026-09-15

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Zalman ZM-STC10 Review

Zalman ZM-STC10 thermal paste, silicone-based, 11.5 W/mK, 2g syringe, gray

ZM-STC10 is Zalman's mid-range thermal compound, blending a silicone base with zinc oxide and aluminum oxide fillers for 11.5 W/mK conductivity, sold in a 2g gray syringe rated from -40°C to 200°C.

Overview

Zalman's ZM-STC10 sits above the older ZM-STG1/STG2 pastes already in the catalog, using a metal-oxide-filled silicone base for improved thermal conductivity.

Best Use Case

Mainstream desktop CPU and GPU cooler installations wanting better-than-entry-level thermal conductivity.

Our verdict

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

Expert rating6.1 / 10

A reasonable mid-tier Zalman compound with a solid published conductivity figure.

Best for

Mainstream CPU/GPU cooling
Users upgrading from Zalman's entry ZM-STG series

Not for

Delidded direct-die extreme overclocking
Liquid-metal-tier performance needs

Specifications

What these specs mean

Identity and form

Brand	Zalman
Model	ZM-STC10
Material Class	Polydimethylsiloxane (silicone) base with Zinc Oxide and Aluminum Oxide fillers

Thermal performance

Conductivity Source	https://www.zalman.com/EN/Product/ProductDetail.do?productSeq=1495

Electrical and board risk

Paste Segment	Standard Paste

Application

Viscosity	300 Pa-s

Operating envelope

Min Operating Temperature	-40 C
Max Operating Temperature	200 C

Quantity, volume versus weight

Density	2.9 g/cm3

Thermal Conductivity	11.5 W/mK
Electrical Conductivity	Insulating
Package Size	2g syringe (110 x 23 x 14mm)
Recommended Use	Mainstream CPU/GPU

FAQs

What are the key specifications of the Zalman ZM-STC10 (Silicone-Based/Non-Conductive/2g Syringe/11.5 W/mK)?

Key specs for the Zalman ZM-STC10: Thermal Conductivity 11.5 W/mK, Thermal Conductivity Source https://www.zalman.com/EN/Product/ProductDetail.do?productSeq=1495, Electrical Conductivity Insulating, Material Polydimethylsiloxane (silicone) base with Zinc Oxide and Aluminum Oxide fillers, Operating Temperature -40°C to 200°C, Density 2.9 g/cm3.

Will the Zalman ZM-STC10 (Silicone-Based/Non-Conductive/2g Syringe/11.5 W/mK) work with my current setup?

The Zalman ZM-STC10 (Silicone-Based/Non-Conductive/2g Syringe/11.5 W/mK) lists Thermal Conductivity is 11.5 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 Zalman ZM-STC10 (Silicone-Based/Non-Conductive/2g Syringe/11.5 W/mK) best suited to?

Best suited to: Mainstream CPU/GPU cooling; Users upgrading from Zalman's entry ZM-STG series.

What are the drawbacks of the Zalman ZM-STC10 (Silicone-Based/Non-Conductive/2g Syringe/11.5 W/mK)?

Not the best fit for: Delidded direct-die extreme overclocking; Liquid-metal-tier performance needs.