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Hammerite
Car Care - Rust Converters & Rust Removers
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Hammerite Waxoyl Car Underseal and Rust Protection. The Original Rustproofing for Cars, Rust Inhibitor and Rust Converter for Classic Car Care. Waxoyl Clear 1Ltr Schutz Can

£15.42

The perfect solution for classic car enthusiasts seeking to safeguard their beloved vehicles from the harsh effects of time and the elements.

Hammerite's Hammerite Waxoyl Car Underseal and Rust Protection is a cutting-edge, proven product that has been trusted by car enthusiasts for decades. Its unique formula not only protects against rust but also inhibits corrosion, ensuring your classic car remains in pristine condition for generations to come.

By applying this revolutionary sealer under the hood, under the engine compartment, and under other areas prone to moisture accumulation, you can significantly reduce the risk of damage caused by water, salt, and other environmental factors. The result is a durable barrier that repels rust and prevents it from penetrating deeper into the metal structure.

Waxoyl Clear, a proprietary blend of polymers and waxes, provides an excellent 100% waterproofing effect. When used in conjunction with Hammerite's Rust Converter, you can create a comprehensive underseal system that extends protection to all areas where moisture is most likely to accumulate. With its high-quality formula and easy application process, this product ensures your classic car remains beautiful for years to come.

Product Reviews

Name: Review:
Used for years, this product has been a reliable addition to my car maintenance routine. While I've always found it effective, there's one thing that needs to be addressed: its tendency to hold onto rust and corrosion.

Every time I remove a loose nut or bolt from the vehicle or bike, it leaves behind a stubborn residue that can make replacement more difficult than usual. This has led me to develop a habit of coating all vulnerable surfaces and nut heads at the start of winter with a specialized lubricant. And then, in the spring, I meticulously clean off any remaining residue using WD40.

In recent years, I've also found it beneficial to apply a thin layer of varnish over the seams and chassis of my vehicles and bikes after they've been coated. This not only protects against rust but also helps to preserve the finish and extend its lifespan. A final step in keeping everything in top condition is to mix the product with white spirit or paraffin and paint over any exposed areas, ensuring a long-lasting barrier against corrosion.

R. Yates - 21/02/2026

It's had some minor rust spots that have been munched through and now seems to be protecting them elsewhere on my van. I've tried painting it, but apparently spraying the same stuff isn't enough - it just won't dry properly.

Van has some minor rust spots and appears to be protecting them elsewhere - a bit disappointing.

P. Gladstone - 04/03/2026

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