Products Used by Carson Undercoating

Cosmoline RP-342 - Military Grade Wax Coating


Over the counter wax coatings typically don’t last very long, or look very pretty after being applied, however Carson Undercoating has access to a military grade wax coating that doubles as a rust preventative.

The military grade wax coating we use is frequently applied to automotive disc brake rotors before leaving the factory to prevent corrosion before being installed. During World War II the United States coated entire tanks, for long sea voyages, to prevent rust and corrosion. After being applied, this wax coating is so tough after it dries it can only be removed by a petroleum based solvent. This step in the process is quite literally what “seals the deal.”

* 1-coat protects all metals, iron, steel (stored Indoors or Outdoors) for Years!

* Newly formulated! Our thickest, longest-lasting Rust Preventative Spray.

* Produces dry-to-the-touch, amber translucent (see-through) wax coating.

* Faster-Drying formula allows for quicker handling and/or shipping.

* Withstands severe outdoor exposure, salt-laden atmospheres, acid & caustic fumes and other damaging environs.

* Repels water and will not wash off in salt water environments.

* Will not crack, craze, peel or flake and remains slightly flexible over time.

* Exceptional Vehicle Undercoating Product (Autos, Trucks, Buses, Trailers, etc.)

* Aggressively adheres to imperfect surfaces and offers self-abraiding characteristics.

* Modeled after Military Specifications: MIL-PRF-16173, Grade 4 and MIL-C-83933.

Corroseal Rust Converter/Primer


Corroseal rust converter is an elite, industrial strength product for all your marine, household, automotive, and industrial rust problems.

Rust occurs naturally when the iron in steel oxidizes and returns to its original state, iron oxide. Through an innovative chemical conversion process, Corroseal Rust Converter converts rust into a stable substance, magnetite. It also primes the surface with a high quality latex metal primer at the same time. Corroseal truly provides one step corrosion control.

Commercial rust converters like Corroseal are water-based and contain two primary active ingredients: tannic acid and an organic polymer. Tannic acid chemically converts the reddish iron oxides into bluish-black ferric tannate, a more stable material. The second active ingredient is an organic solvent such as 2-butoxyethanol (ethylene glycol monobutyl ether, trade name butyl cellosolve) that acts as a wetting agent and provides a protective primer layer in conjunction with an organic polymer emulsion.

At Carson Undercoating, we like Corroseal as it’s the best rust converter we’ve used out of several. Corroseal provides wonderful long-term results in conjunction with our rust removal and preparation process before undercoating. You can find more info about that process here.