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Waxoyl V Dinitrol

About our Undersealing Service

About our Undersealing Service

Most car enthusiasts will agree that one of the most important factors of owning your vehicle is rust prevention, particularly for older cars and classic cars too. Understanding the detrimental effects of corrosion and the necessity of reliable corrosion protection is crucial for maintaining the integrity of your vehicle. Our UK weather provides the ideal weather for rust on your vehicle nowadays.  With our ever-increasing harsh winters bringing rain and snow, it is a perfect time for your vehicle to start getting rust on it.  We also find our roads being treated with more and more salt to combat these bad road conditions too.  Therefore, you need to think about your rust prevention for your vehicle and other vehicles, ensuring they are protected against corrosion and rust.

Here are a few pros and cons of these corrosion protection treatments for your vehicle and why rust prevention is very important. What is the difference between Waxoyl and Dinitrol?

  • Waxoyl is a wax type and Dinitrol is a grease type of treatment. The wax type of treatment has white spirit as the carrier and the grease type of treatment has mineral oil as the carrier.  It will come down to personal choice which one you chose for your vehicle.

  • Dinitrol will get into the nooks and crevices of the vehicles bodywork to give good rust prevention. It also has a rust inhibitor that excels in bonding and sealing, counteracting any surface that the rust encounters and providing robust rust prevention with good adherence, high modulus, and resistance to ageing and weathering.

  • Waxoyl is an oil and water mix and therefore it will never cure. So hot days it will continue to drip out of any of the holes it was applied to on your vehicle.  It will also give out odour from the oil. The white spirit in Waxoyl evaporates, causing the film to shrink and grip the surface, which results in a mechanical keying effect.

  • There is also no smell from this application of Dinitrol as the solvents are aromatic. When the wax and solvent vanish, it leaves only the wax. This will expand according to the temperatures.

  • Dinitrol also leaves a skin when applied onto your vehicle and stays soft underneath it allowing it to self-heal in temperatures that it is subjected to. This means that it will self-heal over small stone chips and scratches too.

  • Dinitrol is far easier to apply than Waxoyl as it has been shown that Waxoyl can be affected by the changing weather. The problem with Waxoyl is that it can be applied too thin, which does not effectively protect against rust and may quickly disappear on areas of rust.

  • In a report that was carried out it showed that Waxoyl doesn’t seem to penetrate any significant amounts of rust whereas Dinitrol did fill in those gaps, addressing the problem of rust prevention comprehensively.


Rust prevention is crucial for protecting all vulnerable areas of a vehicle, including open areas, hard to reach areas, and areas of rust, ensuring comprehensive coverage. It is a rewarding job and one that everyone should think about that owns a vehicle, especially those that are an enthusiast about their classic car. It is part of ongoing maintenance for your vehicle and an important step in classic car restoration.

Rust prevention treatments shouldn’t be applied onto damp or wet surfaces. In the course of maintaining your vehicle, it’s important to note that while no rust prevention treatment is particularly resistant to abrasion, their effectiveness in protecting your vehicle over time is significant. Early autumn is the best time to apply your treatments as that is when it is more than likely to have fine weather and have a few dry days to complete your treatment in the proper order. The alternative is to use a specialist rust prevention facility that offers a wide product range, including options for every need from surface putty for repairs to corrosion protection for vehicles and machines. Contact us now for more information or book an appointment. Vehicles treated with our comprehensive rust prevention solutions are resistant to rust over the course of their lifespan, ensuring long-term protection and peace of mind.

Free Inspection after care service

You are welcome back for a free yearly inspection of the wax and underside.

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Opening and closing times

Monday-Friday: 8am-4pm

Saturday: Closed

Sunday: Closed