Best Zinc Oxide Thermal Paste of 2025

Tom Law Avatar
Tom Law
Last Updated: 31 Jan 2025

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Zinc Oxide Thermal Paste is a high-quality heat transfer compound that is commonly used in electronic devices, such as computer processors, graphics cards, and power amplifiers. The paste is designed to improve the thermal conductivity between the heat source and the heat sink, thereby reducing the temperature of the device and increasing its lifespan. Zinc Oxide Thermal Paste is known for its high thermal stability, low thermal resistance, and excellent electrical insulation properties. It is an essential component for anyone looking to improve the cooling performance of their electronic devices.

At a Glance: Our Top Picks

Corsair TM30 Premium Thermal Paste for CPUs Cover #TOP 1
Corsair TM30 Premium Thermal Paste for CPUs
ftb score rating icon 9.8
Arctic Silver 5 Thermal Compound 3.5g Tube Cover #TOP 2
Arctic Silver 5 Thermal Compound 3.5g Tube
ftb score rating icon 9.7
EC360® Carbon Thermal Paste with 5.15 W/mK Conductivity Cover #TOP 3
EC360® Carbon Thermal Paste with 5.15 W/mK Conductivity
ftb score rating icon 9.5

Top 4 Zinc Oxide Thermal Paste

Corsair TM30 Premium Thermal Paste for CPUs

CT-9010001-WW
Performance Paste
3 grams
Corsair TM30 Premium Thermal Paste for CPUs Cover
Corsair TM30 Performance Thermal Paste, Premium Zinc Oxide Based, Heatsink Paste, Thermal Compound for All CPU Coolers, Thermal Interface Material, 3 g, Black

The Corsair TM30 Thermal Paste is a premium zinc oxide based thermal compound designed for optimal thermal performance. By installing this paste on your CPU and GPU, you can significantly enhance heat transfer and reduce temperatures. Its ultra-low thermal impedance ensures that your CPU operates cooler compared to standard thermal pastes. Additionally, the low-viscosity formula fills microscopic gaps effectively, promoting peak thermal transfer for your components.

What We Like
Improves heat transfer
Lowers CPU temperatures
Fills microscopic abrasions
Long-lasting stability
Easy to apply
#TOP 2

Arctic Silver 5 Thermal Compound 3.5g Tube

AS5-3.5G
Silver
1 Tube
Arctic Silver 5 Thermal Compound 3.5g Tube Cover
Arctic Silver 5 Thermal Compound 3.5g Tube

Arctic Silver 5 Compound is an exceptional thermal paste designed for optimal heat transfer. Its unique formulation includes 99.9% pure silver particles, enhancing particle contact and heat conductivity. With a high-density composition, it contains over 88% thermally conductive fillers, ensuring excellent performance and stability. The controlled triple-phase viscosity simplifies application, as it adapts to provide a perfect fit between the CPU and heatsink, improving efficiency during use. Additionally, this compound is not electrically conductive, prioritising safety while conducting heat.

What We Like
High thermal conductivity
Easy application
Long-term stability
Not electrically conductive
99.9% pure silver
#TOP 3

EC360® Carbon Thermal Paste with 5.15 W/mK Conductivity

EC360
grey
EC360® Carbon Thermal Paste with 5.15 W/mK Conductivity Cover
EC360® Carbon 5,15W/mK Thermal Paste (4g)

The EC360® Carbon Thermal Paste offers impressive thermal conductivity at 5.15 W/mK, making it 180 times more effective than air at transferring heat. This feature ensures that your CPU and GPU remain at optimal temperatures, enhancing performance and longevity. The paste is crafted from nano-carbon compounds combined with metal oxide particles, ensuring a robust and reliable material. Its easy installation allows you to spread it effortlessly, while its safe handling properties mean you don’t have to worry about short-circuiting, making it an ideal choice for your thermal management needs.

What We Like
Excellent thermal conductivity
Easy to apply
Safe and non-capacitive
Durable performance
#TOP 4

Thermal Grizzly Duronaut Thermal Paste for Gaming

TG-D-002-R
Grey
2 Gram
Thermal Grizzly Duronaut Thermal Paste for Gaming Cover
Thermal Grizzly - Duronaut - 2 Gram - Enhanced Durability & High Performance Thermal Paste - for Maximum Thermal Conductivity While Overclocking CPU/GPU/PS4/PS5/Xbox

Thermal Grizzly Duronaut offers exceptional long-term stability, ensuring that it maintains its performance over time without hardening. This means you can enjoy reliable cooling for your CPU, GPU, or gaming consoles like PS4 and PS5. With superior thermal conductivity, it efficiently transfers heat away from components, promoting optimal cooling. Its electrically non-conductive nature makes it safe to use on all electronic parts, eliminating the worry of short circuits. Additionally, the minimised pump-out effect enhances adhesion, giving you consistent performance even during intense usage.

What We Like
Long-lasting performance
Efficient heat transfer
Safe for all components
Enhanced adhesion
Buying Guide Image

Frequently Asked Questions (FAQs)

1. Is zinc oxide good for thermal paste?

Thermal interface material the type of thermal grease in the form of a composite is very suitable for use on the CPU. Sodium silicate as a matrix and zinc oxide as fillers has many advantages compared to silicon and metal as the raw material for making thermal grease for CPU which is widely used today.

2. Is zinc oxide thermal paste conductive?

It uses zinc oxide as the filler to achieve a thermal conductivity of 0.66 W/m·K. The product is electrically-insulating and non-corrosive with an operating temperature range of -40 to 200 °C. If higher performance is required, silver-based compounds can have a thermal conductivity of 3 to 8 W/m·K or more.

3. Does zinc oxide conduct heat?

For material science applications, zinc oxide has high refractive index, high thermal conductivity, binding, antibacterial and UV-protection properties.

4. What is the best alternative to thermal paste?

The best solutions turned out to be hair wax and toothpaste, which exhibited a relatively low temperature without completely drying out and cracking. If you're impatient or under a tight deadline and need to squeeze in a few hours of extra work, consider toothpaste or hair wax when nothing else is available.

Editor's Notes

During our zinc oxide thermal paste research, we found 10 zinc oxide thermal paste products and shortlisted 4 quality products. We collected and analyzed 416,846 customer reviews through our big data system to write the zinc oxide thermal paste list. We found that most customers choose zinc oxide thermal paste with an average price of £10.68.

The zinc oxide thermal paste are available for purchase. We have researched hundreds of brands and picked the top brands of zinc oxide thermal paste, including Corsair, Arctic Silver, EC360, Thermal Grizzly.

Written by
Tom Law Avatar

Tom Law is an adventurer who has captured his love for nature into all of his works. A native of Newcastle, Tom has always wanted to share beautiful stories alongside the lovely sights of nature. Fortunately, he took into photography on one of his many journeys and gradually grew a passion for it. Tom Law is now an expert photographer who tours the world while creating and keeping memories of his adventures. He frequently puts his thoughts and experiences into writing.