Waxoyl

Waxoyl is a rust-preventative fluid approved and used by OEM around the world. The current proprietors of the TradeMark are listed as Hammerite Products, Ltd, United Kingdom - filing date 27 September 1979 - "first advert" 5525 page 1936 for United Kingdom Trade only. The trademark for the rest of the world belong to Waxoyl Professional.

It is commonly used to prolong the life of car chassis and bodywork, by excluding water and air from bare metal and by slowing the progress of existing rust using rust inhibitors. The fluid contains waxy particles suspended in white spirit, which evaporates after application. The suspended nature of the wax means Waxoyl in its pre-application state is a thick opaque liquid. If the product is below 65 degrees it requires warming and in order to apply it using spray or injection equipment. DIY Finnigan's kits are available with a basic pressure can, spraygun and extension probe, but to achieve good spray coverage inside hollow box members, a proper compressed air-powered lance must be used such as the kits provided by Waxoyl Professional. The originator and original owner of Waxoyl, Hammerite and other products, Allen Forster, sold "Finnegan's Speciality Paints" to Hunting Lubricants. At the same time he sold the rights to sell Waxoyl overseas (worldwide, apart from the UK) to an Hubbard (deceased), an American who resided in Switzerland.

UK Waxoyl (manufactured and marketed by Hammerite products, owned by ICI) is available from motor factors in five litre cans. A pump action applicator ready filled with Waxoyl, along with aerosol cans are also available.

In the UK, Waxoyl was championed particularly by Classic Car enthusiasts because of its ability to "stop existing rust and prevent further rust". For example, it was recognized as "THE" treatment to use when restoring an MGB or a Jaguar whether the restoration was carried out by an enthusiast or a professional restorer. Practical Classics commissioned comparative tests in 1987 for a feature on which rustproofing material to use. Waxoyl came out way ahead, particularly on already rusty steel. UK Waxoyl is available in “clear” or “black” (the “clear” is actually amber coloured from the can). Clear is generally used for cavities and the black for underbody, although a case can be made for the reverse order. For example the black can be used for the cavities so that coverage is easy to see and on a valuable “collectors” car, any rust on the underbody can be stopped with an application of “clear” Waxoyl to avoid any accusations of “tarting up”.

The clear Waxoyl has very little abrasion resistance. Waxoyl UK produce a “Waxoyl Underseal” for the underbody. This contains added bitumen which gives the product abrasion resistance but at the cost of the ability to creep compared to normal Waxoyl.

Hubbard's family still sell Waxoyl, together with car valeting products, all sold under the umbrella name of "Waxoyl Professional". Waxoyl Professional has further developed their own versions of Waxoyl with specific underbody and cavity variants.

Dinitrol (OEM and NATO approved), and Dynax S50 are competing products with similar properties.