Best RV Wax For Fiberglass (Updated 2022)

One of the best things that you can do to help maintain your RV fiberglass roof is to apply wax. Regular washing and applying of cleaners and wax are essential to extending the life of the roof of your RV.

This is the reason why finding the best RV wax for fiberglass roofs is essential, for you to ensure that you are applying nothing but the best to your RV.


RV Fiberglass Roof

Best RV Wax For Fiberglass

A fiberglass roof is one of the most common types of material used in entry level priced RVs. But there are also expensive ones that have fiberglass rooves with fill paint. Most of the fiberglass roof is painted in white, but there are also ones that are colored in cream.

Some manufacturers are putting in decal striping or lettering if needed. But there are, of course, plain ones where the buyer can decide whether to put something or not. Unfortunately, if you don’t maintain your fiberglass, it can become chalky, uneven, and hazy. That is why applying the best RV wax for fiberglass is essential.

Best RV Wax For Fiberglass

Since fiberglass rooves tend to develop traces of oxidation, it would be best to choose an RV wax for fiberglass that is already two-in-one. This just means that the wax should be able to both clean and protect your RV’s roof.

People who are storing their RVs indoors still need to use wax now and then to ensure that the roof is well maintained.

Benefits Of Best RV Wax For Fiberglass Roof

Best RV Wax For Fiberglass


  • Reduces Roof Oxidation

One of the benefits of applying the best RV wax for fiberglass is that it helps reduce the roof’s oxidation. Oxidation happens when the oxygen comes into contact with certain materials. It will then start breaking down over time. You can see this occur in pennies, where they turn green and start turning into metal rust. Fiberglass rooves are known to be susceptible to this problem, which makes them look and feel rough. If you leave it untreated, the roof will start flaking.

If your roof is starting to oxidize, choosing the best RV wax for fiberglass roof that has an abrasive content to help polish and smoothen the roof. For severe cases, on the other hand, you will need to purchase a polish that will remove oxidation.

  • Less Accumulation Of Dirt And Debris

Another good thing about applying wax on the roof of your RV is that it helps to stop dirt - and birds - from accumulating on top. The reason for this is that they slide off!

This will also include tree saps, but this does not mean that you can just let these saps drop on to the roof of your RV. The best thing that you can do is park your RV under a tree that does not produce sap.

  • UV Protection

Applying wax on your RV’s roof will keep it protected from the harmful rays of the sun. A roof that is left exposed to the UV rays can cause damage. That is why applying wax regularly will help the roof of your RV stay protected.

  • Frequency Of RV Roof Waxing

The frequency of waxing will depend on the age of your RV and the shape that it is in. It is advisable to wax the roof of your RV at least twice a year. You may choose your hand or an orbital electric buffer to help you with the process of waxing.

Top 3 Best RV Wax For Fiberglass Roofs

**Below, you'll see more detailed reviews, but you can also click the links above to see current prices and read customer's reviews on Amazon.

Meguiar’s cleaner wax contains chemical cleaners that will help remove scratches, minor swirls, haze, and light oxidation. It can deposit all the ingredients of anti-corrosive and an excellent layer of protection to help it withstand rain and UV rays.

One of the best things about this wax is that, if applied regularly, it can help prevent the effect of oxidation. Your fiberglass roof will undoubtedly remain shiny, vibrant, and crisp for an extended period.

Another good thing about Meguiar’s is that it has cleaning properties. This means that all stains and debris can be removed from the roof, to bring back its natural color. It can even make the color brighter. Your RV’s appearance will be maintained.


  • Can help with light oxidation
  • Can keep RV’s roof shiny
  • Does not streak
  • Protects the RV’s roof effectively


  • Challenging to use

Gel Coat Labs is formulated with a polymer nano-technology, also known as Polycharger, which provides long lasting and durable protection in certain elements. You can easily use this wax on the RV’s roof.

Another good thing about this gel coat is that it can help extend and enhance the slickness, clarity, and the gloss of your fiberglass roof. Before using the product, it would be best to clean the roof and let it dry.

Once done, you can start shaking the bottle and apply a little amount on a microfiber pad. When rubbing onto the roof, it would be best to do it in a circular motion with only medium pressure. Let it dry and buff any residue.


  • Keeps the RV roof protected
  • Easy to use
  • Works as advertised
  • Can be applied by hand or machine


  • Pricey

3. Marine 31 All in One Gel Coat Polish & Wax

Marine 31 is an all-in-one polish and wax, which is a one step solution to help remove light oxidation. The stains will also be removed to keep the roof of your RV looking clean again. This wax is formulated with advanced micro-abrasive, nourishing oils and cleaning agents.

Marine 31 will help maximize the roof’s color and gloss while ensuring that the wax protection is durable. Another good thing about Marine 31 is that it can easily be applied by hand or by machine.

One of the best things about this wax is that it can help protect the roof from UV rays, which can ruin the appearance of your RV. It can also help hydrate and clean the surface to maximize smoothness.


  • Cleanse thoroughly
  • Protects the roof from UV rays
  • Restores the roof’s appearance
  • Works in light oxidation


  • Does not make the roof shiny

The Best RV Wax for Fiberglass for YOU!

These are the three best RV wax for fiberglass reviews to choose from. For this review, the clear winner is Meguiar’s Mirror Glaze #50 Marine/RV Cleaner Wax. The reason behind this is because of the non-abrasive formula that it has, which helps polish, clean, and protect the roof.

It can also effectively and safely remove swirls, scratches, haze, and light oxidation. If you are looking for a wax that will restore the brilliance, color and the gloss of your fiberglass, then Meguiar’s is the one for your RV.

Did you find the reviews helpful? Then why don’t you share your thoughts in the comments section below! You should have decided after reading the revies whic is the best RV wax for fiberglass for you!

As an Amazon Influencer, we earn from qualifying purchases you might make if you click any of the links on this page.

5/5 - (1 vote)

Click Here to Leave a Comment Below 3 comments

Meguiar’s RV wax is great for maintaining a camper’s high gloss finish. Applying Meguiar’s M5032 to my vehicle, and I could see its premium luster from a good distance.


What I also love about this product is its pure wax. Meguiar’s RV wax gives a tough coat of protection for the RV, making it easy to clean for a long time. Oxidation remover effectively gets rid of oxidation stains and scratches.

Samantha Nichols

We used Meguiar to wax our RV. After using it, our RV was a totally different color! It went from old dingy yellow to a nice new off-white. I did skip the polish step a few times and just removed oxidation then sealed it with pure wax. Very happy with this product.


Leave a Reply: