Mg 4030

Primary Gunmetal Grey™

Our entry-level plasma-applied thermal barrier ceramic coating.

Primary Gunmetal Grey™ was devised as a lower cost derivative of our plasma-applied ceramic coating technology. It is a ceramic coating that retains all of the quality and durability for which Zircotec’s coatings are renowned.

Balancing thermal performance with affordability, this ceramic coating will appeal to users who want some of the benefits of Zircotec’s plasma sprayed thermal barrier coatings, but who might not need the ultra-high levels of thermal barrier performance also offered by Zircotec.


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Primary Gunmetal Grey™ offers the following key benefits:

Robust fit-and-forget ceramic coating

It is in effect “welded” to the substrate using our proprietary metal bond system; eliminating the need for exhaust wrap; protecting components against corrosion; and continuing to perform and look good. With no compromise on quality, this coating has passed our full product validation regime.

Attractive matt grey finish

With a ceramic coating based on our proprietary ThermoHold® technology.

High level of thermal performance

Suitable for applications of up to 900°C (1,650°F).

Significantly lower exhaust temperatures

Although this is our “entry level” coating, with it being applied with our ThermoHold® technology, it still offers up to 25% surface temperature reduction. This is significantly better than high temperature paints alternatives which typically offer a ~9% temperature reduction.

Reduced heat loss from exhausts

resulting in lower engine bay temperatures

Highly efficient yet lightweight

Only 0.3mm thick (0.012″ thick) with minimal weight gain.

Protection for vulnerable components located close to the exhaust

Avoiding heat damage, increasing component life, and allowing closer packaging of equipment inside the engine bay.

Improved engine performance and reliability

Lower air intake temperatures lead to increased engine power, whilst keeping the heat inside the exhaust gas allows the gases to flow more easily increasing cylinder scavenging, and allowing turbochargers to spool up more quickly.

Reduced heat soak through footwells, bulkheads, etc.

So drivers are cooler, more comfortable, and more able to concentrate.

Rapid cooling of the exhaust when the engine is turned off

The surface temperature of the coating drops quickly when the engine is off, making pit stops faster, easier and safer.

Cost Effective

Our most affordable plasma-applied thermal barrier ceramic coating, providing excellent value for money for road uses.

1 year product gurantee

This coating is covered by our comprehensive 1 year product guarantee irrespective of whether we coat your system when it is new or used. Warranty is not available for Motorsport applications.