How to remove oxidation from RV fiberglass for new look

You want to keep every inch of your RV clean for more reasons that simply how it looks on the outside. Many RVs on the market today have fiberglass design inserts for the windows and other viewing areas on the vehicle. Fiberglass is commonly used on many RV designs for the simple reason that it is a very durable yet long-lasting material which provides you with a moderate amount of protection for your vehicle in general when it comes to avoiding impact from oncoming objects or other debris which may be in the road way.

One of the most common issues with having fiberglass as a design component of your RV is that you will encounter the formation of oxidation on the surfaces. Most of the fiberglass inserts that you find in modern RVs are finished with a gel coat which acts as a protective layer against the onset of damage. Oxidation is just a fancy word for air and oxygen having a chemical reaction which then produces rust.


External weather conditions and sunlight are two of the main things that you’ll have to fend against in terms of preventing rust from forming on the fiberglass surfaces of your RV. However, oftentimes you will have much better luck removing any rust formation than actually preventing it from occurring. You need to wash your RV on a regular basis to thoroughly remove any existing rust from your vehicle in addition to preventing the formation of any unnecessary rust from your vehicle.

After you’ve comprehensively removed the rust from your RV, you need to wax your vehicle which will create a protective barrier against your fiberglass’s gel coating. Even with routine washes and waxing, your RV will still develop oxidation over time as the wax begins to wear off. Due to this process, you will be forced to regularly wash, remove oxidation, then apply a new layer of wax every time you begin to notice your fiberglass surfaces forming rust.

It’s also very important to understand the difference between all of the various types of fiberglass finishes that there are in existence. The most common type of fiberglass coat is a fiberglass gel coat which usually has a cream or white color to it. This kind of fiberglass coating will become fuzzy and chalky looking over time which is why you will want to regularly wash your vehicle and seal it with a coat of wax.

Another common type of fiberglass finish is known as corrugated fiberglass which typically consist of textured patterns and are usually white in color. Removing rust itself is easy, all you need is a high-quality polishing compound that has a nice amount of some sort of abrasive element which will allow you to scrub off oxidation from the surface of your RV with a little bit of elbow grease behind it.

You always want to let your polish dry before wiping it off of the surface from which it was first located.



  1. Roe Gary

    Thanks for your information you provided. But if I want to remove Heavy Oxidation, how to remove heavy oxidation from RV’s Fiberglass? Can you give me some advice? Thanks again!