Best Fiberglass RV Waxes: Add Some Shine and Protection to a Fiberglass RV

Protect your fiberglass RV with these top choices

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BY Austin Fracchia , Linsay Thomas / LAST UPDATED ON May 14, 2021

Since most recreational vehicles have a fiberglass exterior, detailing these large behemoths can be somewhat different than your average car. While many washes, polishes, and waxes can be used on RVs and other vehicles, it pays to take some extra care with your product selection to avoid the staining or damaging the fiberglass surface. That's why we've taken the time to compile this guide for RV owners. It includes some of the best RV waxes that are safe for use on fiberglass exteriors.

Best Overall
Meguiar's M6332 Premium Wax
The best product you can use on RVs and boats to get a great shine and protective finish onto the surface.
Comes in a large 32-fluid-ounce bottle. Great water-repellent capabilities gave the boat-specific design. Good shine.
Wax is sensitive to environmental factors. The optimal temperature range is only around 10 degrees before it dries too slowly or quickly.
Best Overall
Meguiar's M6332 Premium Wax
Best Value
TR Industries Gel-Gloss Wash and Wax
A convenience wash-and-wax cleaner wax that makes it easy to get a clean and shiny surface from your RV again.
The wash-and-wax combo is extremely easy to apply. Suds onto the RV surface. Since it’s not a rinse-free product, it can be rinsed with water right from the hose. 
Doesn't react well to sunlight. Spots may form in the finish if left to air dry alone.
Best Value
TR Industries Gel-Gloss Wash and Wax
Honorable Mention
Meguiar's Marine/RV Fiberglass Restoration System
The fiberglass restoration kit to choose when you need to do some detailing magic on your RV or boat.
Comes with three separate cleaning solutions. The Pure Wax does a good job of leaving a noticeable shine with some basic water-repellent capabilities.
The entire three-step restoration process can be difficult and lengthy to achieve the best results. Better done by hand, although power applicators can be used if you have the skill.
Honorable Mention
Meguiar's Marine/RV Fiberglass Restoration System

Why Trust Us

Our reviews are driven by a combination of hands-on testing, expert input, “wisdom of the crowd” assessments from actual buyers, and our own expertise. We always aim to offer genuine, accurate guides to help you find the best picks.

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Why Buy a Fiberglass RV Wax

  • Shine up your RV. There is nothing quite like a shiny RV rolling down the highway. A good wax, combined with the right wash and polish, can give your RV a high-quality finish that will surely catch the eye of any smaller vehicle roaming down the road along with you.
  • Protect the fiberglass exterior. Fiberglass is generally a long-lasting, durable material, but certain things like water and UV rays can cause some premature wear and tear as it ages. A wax layer with water and UV protection will help you prolong the life of the fiberglass and the paint above it.
  • Make cleaning quick and simple. Wax layers tend to help repel dirt and grime that likes to cling onto bare paintwork or clear coats. If you plan on driving anywhere that may leave your RV a dusty, dirty mess, wax it before you travel to make cleanup afterward a breeze.

Types of Fiberglass RV Waxes


Liquid waxes make up the bulk of most RV fiberglass waxes. Coming in large bottles, liquid wax is fairly easy to apply in controlled amounts over large surface areas. They also tend to respond well to both hand and power application, making this type extremely versatile in matching your personal preferences on waxing your RV.


Paste waxes sit on the opposite end of the waxing spectrum compared to liquid types. Pastes, especially carnauba waxes, are harder and can be more difficult to apply by hand. For RV use, they are less common but remain a good choice if you prefer to avoid liquid and spray-on solutions.


The least common type of wax for RV use, spray-on waxes are generally the most convenient to apply. Since bottle sizes tend to be small, and the spray-on action leads to a lot of oversprays and wasted wax, they aren't the most economical when it comes to waxing an RV. In other words, expect to buy a few extra bottles of spray if you want to use this type of wax. 

Top Brands of Fiberglass RV Waxes


It should come as no surprise that one of the leading manufacturers of polishes and waxes offers some great fiberglass shiners as well. Meguiar's has a history that spans more than 110 years. In that time, the company has developed numerous cleaning and detailing products that have set many industry standards and expectations. For RV use, the Fiberglass Restoration System is hard to beat for its comprehensive detailing process.

Star Brite

Founded in 1973, Star Brite started with a single product, the Star Brite Auto Polish. Known for its innovative marketing, the company has since expanded its automotive care products line to include a number of polishes and waxes for a variety of vehicles. Specializing in marine and car products, it has several great fiberglass waxes, including the Premium RV Polish/Ultimate Wax.

Fiberglass RV Wax Pricing

  • $20 and under: Budget fiberglass waxes tend to be small but effective in performance. It's reasonable to expect a decent shine and level of protection here, but be prepared to buy a couple of bottles if you have a large RV to wax.
  • $20-$40: Midrange fiberglass waxes tend to come in larger bottles so you have enough to cover an entire RV for at least one go-around. Finished results are on par with budget-friendly RV waxes.
  • $40 and above: Waxes in this range are either large in quantity or come included in combination cleaning kits. Either way, this is the range to check out if you want to maximize the value of your dollar; spend a little extra to get more wax or other cleaning solutions. 

Key Features


Most waxes offer a lot of shine and protection for a certain amount of time. The best waxes offer shine and protection for a long period of time. The durability of wax often dictates how long it will last. On average, three to six months is a good lifespan, especially if you only drive your RV during certain seasons or months of the year. For the best longevity, look for a wax that can last up to the year so you can reduce the amount of waxing you need to do. Look for non-toxic waxes to avoid any allergies as well. 

Element Protection

Beyond the shine of the finished coat, a wax should ultimately provide a good layer of protection against the elements. Water, dirt, and UV damage are three of the most common things waxes need to guard against. These things can damage fiberglass, fade paint, and generally age the RV more quickly. Check the description of any wax you consider to see if it's formulated to repel water or to act as a UV protectant.

Other Considerations

  • Size: Any wax will be limited by the amount it comes in. Larger wax amounts (up to a gallon bottle for liquid waxes) are better suited for RV use since there is less of a chance of running out midway through waxing your RV. Smaller amounts, however, can be good to keep on hand if you need a little extra or want to touch up some spots more frequently than your main waxing routine. 
  • Abrasiveness: The abrasiveness, or "roughness," of a wax measures how likely a wax is to cause haziness or leave small scratches on a finish. RV waxes tend to be low or non-abrasive to avoid scratching a delicate fiberglass surface but keep an eye on any fine scratches as you apply a wax to avoid major damage. Look for waxes that advertise a non-abrasive formula to be sure.

Best Fiberglass RV Wax Reviews & Recommendations 2021

Best Overall
Meguiar's M6332 Premium Wax

Don't let the picture of a sleek boat fool you, Meguiar's Premium Marine Wax goes on all things fiberglass, including large RVs. In fact, this wax adds an extra layer of water-repellant protection that rivals and beats many cars wax on the market today. Since it's specifically formulated for fiberglass exteriors, it is also easy to apply onto the relatively delicate surface without worrying about damage.

Coming in a 32-fluid-ounce bottle, the wax offers a lot of liquid to cover the large surface area of most common RVs. By far, the standout feature of this wax is the water-repellent capabilities it has. On boats, the wax does a great job of sticking onto the hull while fully submerged. On RVs, the protective coating sheds and beads water in rainy or snowy conditions. The wax buffs well (either by hand or power buffer) to a nice shine.

When it comes to working with the wax, the application is relatively easy, but you may find it is a bit sensitive to the surrounding environment. Like most waxes, application in direct sunlight isn't recommended. In fact, the wax's drying time greatly varies depending on the outside temperature; it has a sweet spot of around 60 degrees for good, workable drying time. Anything higher makes it dry too fast; anything too low makes it difficult to apply and remove properly.

Best Value
TR Industries Gel-Gloss Wash and Wax

TR Industries' Gel-Gloss RV Wash and Wax fit into the same category as many budget-friendly car washes: It works quickly, and you get a lot of value for a small price tag. The formula contains a fiberglass-friendly washing solution mixed with a carnauba-based wax. Combined with the 128-ounce bottle, this wash-and-wax combo gives you plenty of liquid to tackle most RVs with some leftover.

As a wash-and-wax combo, the Gel-Gloss is all about speed and convenience. The liquid suds onto the fiberglass surface and can be rinsed off with water. There isn't much scrubbing required to get basic amounts of dirt and debris off of the surface as well. The finished coat does a good job of protecting the fiberglass against water UV radiation, and light oxidation.

While the finished results are good, it's no substitute for dedicated waxes that offer a better shine and longer life. With that said, it doesn't leave any noticeable stains or marks, but you may notice some minor streaks and water spots in direct sunlight. It's labeled as a no-spot cleaner, but spots can develop in sunny conditions if you don't give it a hand in drying with a microfiber towel or cloth. 

Premium Pick
Meguiar's Marine/RV Fiberglass Restoration System

Meguiar's Fiberglass Restoration Kit is the type of combination product to choose when you need to give some tender love and care to your RV (or boat). The cleaning products are designed to restore a fiberglass finish from an advanced dirty state that can't be cured by water and soap alone. In total, the kit comes with three separate bottles: an oxidation remover, a polish, and Meguiar's Pure Wax.

The 16-ounce bottle of liquid wax is fairly easy to apply to fiberglass surfaces and goes on quickly to cover the large surfaces of an RV or boat. Responding well to hand and power application, the wax doesn't leave much in terms of noticeable black streaks or spots when properly removed. Once on the fiberglass, the wax dries to a haze before removal, so a quick dry test (running your finger over it to see if it lifts off) will be necessary.

Combined with the other two 16-ounce bottles in the kit, the wax does a good job of restoring discolored and stained fiberglass surfaces, but it can be difficult to get the best results if the three steps aren't done correctly. As a result, the process is very time consuming if done by hand, but you may find getting the best look possible easier to achieve when skipping the power applicators and buffers. 

Most Versatile
CarGuys Hybrid Wax Sealant

CarGuys offers an all-in-one sealant that works to replace waxes and polishes. It's an easy solution that allows you to quickly clean and maintain your vehicle, whether it's a car or an RV. 

What makes this product stand out from the others is a powerful and safe formula. The sealant can be applied to all surfaces, and there won't be any streaks or residues. It spreads and wipes off easily, so you can finish the entire cleanup rather quickly. 

You'll notice the glossy showroom results right after the application. What's even more important, the protective coat will stay on for quite a while, keeping your vehicle safe from UV rays, dirt, water, and other harmful elements and substances. 

What can be an issue with this product is the overall longevity. The sealant is not as glossy as regular waxes and tends to lose the wet shine very quickly. That will require frequent reapplication and might turn out to be pricey. The sealant also might leave some streaks on the glass, so make sure to wipe it off carefully after the application.

Honorable Mention
Car Wax Kit by Aero Cosmetics

This is one of those handy wash kits that doesn't even require you to use water for the cleanups. You get to keep it within hand's reach and quickly clean your RV no matter where you are. It’s a rather versatile set you can use on all kinds of cars, RVs, boats, and other vehicles. 

The kit includes two bottles of Wash Wax ALL and four microfiber towels. It's specially designed to clean and protect the surfaces, leaving your vehicles with a glossy finish. The wash wax doesn't only remove water, dirt, and grime, but it also leaves a protective coat that lasts for a while. 

Another benefit of this product is the fact it features a water-based formula. With being free from alcohol and ammonia, it's safe for the human skin as well as for car paint and glass. Furthermore, a little of the liquid goes a long way, so you won't be buying a new product anytime soon. 

The main drawback of this product is the fact it requires some extra elbow grease. You'll probably have to use some extra effort to buff it clean, especially on the glass. The product might leave an oily residue on windows, so you might need to wipe them several times for flawless results.

Honorable Mention
Collinite 845 Insulator Wax

Collinite offers an efficient and durable wax you get to use on all types of vehicles. Thanks to the powerful yet safe formula, you can apply it to different surfaces without worrying about possible damages. Even better, you'll achieve a wet, glossy finish with this wax and take pride in the aesthetic of your vehicle.

The Collinite wax is easy to apply and wipe off. You can use it to quickly wax RVs and other large vehicles. The wax is super efficient in removing dirt, dust, water, and all kinds of stains from the vehicle surfaces. It even leaves a durable protective coat that repels UV rays, rain, snow, dust, grime, and more. 

All in all, the Collinite wax allows you to properly treat your vehicle, and it lasts. Thanks to the compact and convenient bottle, you get to take it on the road with you and perform quick cleanups wherever you are. 

However, the thick formula might come as a drawback as well. Although it should liquify in the sun or a tub of warm water, some users had difficulties with that. They noticed that the product stays thick and is difficult to wipe off. Also, depending on the color of the paint, the wax might leave behind some residue.

Honorable Mention
Protect All All-Surface Care Cleaner by Thetford

This is an all-surface cleaner that works as a wax, polisher, and protector. It efficiently cleans all kinds of dirt, dust, debris, and grime, leaving the surface shiny and protected. It's suitable for most vehicle types, starting with cars, RVs, motorcycles, boats, and ATVs. 

The product features a non-abrasive formula that is safe for all kinds of surfaces, including clear coats and different paintworks. It even contains carnauba wax for more protection. The cleaner leaves a non-oily finish that looks great and repels water, UV rays, and other elements and substances. 

Additionally, the product is easy to apply and doesn't require rinsing. That allows you to use the cleaner wherever you are, which is quite handy for RV adventures. Also, there won't be any streaks or other residues, and you even get to use the cleaner on materials such as chrome, aluminum, stainless steel, vinyl, and more. 

The main drawback of this product is the design of the sprayer nozzle. It's somewhat awkwardly positioned and might make spraying the liquid a little challenging. Also, make sure to keep it in the upright position because the bottle might leak if tipped over.

Honorable Mention
3M Marine Restorer & Wax

The 3M Marine restorer and wax is one of those versatile products you can use on all kinds of surfaces and achieve showroom results. Although mainly designed for boats and RVs, the product can be used on cars, trucks, and ATVs as well. 

What makes this product stand out from others is a unique formula that contains a rubbing compound and a wax. Thanks to this mixture, you can use it to clean, polish, and wax the surface, enhancing its shine and paintwork. The product also works to remove heavy oxidation, which is especially important for those who have stored RVs waiting to be back on the road. 

The 3M Marine restorer and wax is a convenient and safe product that leaves a protective coat on your vehicle's surface. It's also very durable, so you'll probably use it for a long time. 

However, the main issue with this product is the price. The wax comes in 16- and 32-ounce bottles that prove to be rather expensive. If you're looking for an inexpensive cleaning option, this is not an ideal choice. Another minor inconvenience could be the fact that the liquid is sometimes difficult to pour out of the bottle. 

Honorable Mention
Star Brite One-Step Cleaner Wax

The Star Brite cleaner is specially formulated for fiberglass, metals, and painted surfaces. It's ideal for RVs as well as for other vehicle types. You can use it not only for general cleaning, but also for maintaining and protecting surfaces from all kinds of threats. 

The product restores shine and paint and cleans and protects the surface in just one step. It resolves dirt, debris, and stubborn stains while also leaving a protective coat. This way, it will also repel water, UV rays, and other harmful elements in the long run. Additionally, the product proves to be rather efficient in preventing fading and oxidation. 

It's also important to mention that the product is easy to use. All you need to do is to spray and wipe off the liquid, making the surface very shiny.

However, keep in mind that this cleaner is not ideal for cleaning heavy oxidation. It's primarily a maintenance product that will prevent further damage. Also, you might need to reapply it frequently because the glossy effect doesn't last for very long.

Honorable Mention
PRO Car Beauty Products RV, Boat & Aircraft Wax

If you're looking for a heavy-duty cleaner that will help you remove persistent stains and residue, you might want to check out this wax. It's a highly efficient product that removes scratches, oxidation, and other buildups. You also get to use it on all kinds of vehicles, including RVs, boats, trucks, and more. 

The product contains carnauba wax and polymer sealers that not only clean, but also protect the surface in the long run. With such a powerful formula, the wax protects the surface from water, UV rays, and oxidation, making it shiny and good-looking all over again. Furthermore, you can use the wax on fiberglass, chrome, aluminum, and many other materials.  

The main drawback of this product might be the application. Although it's easy to spread the liquid on the surface, it might be challenging to wipe it off. The wax is also a little pricey, especially considering the fact you'll need to use more liquid for a thorough cleanup.


  • Remove as much dirt as possible before applying wax to your RV. Anything left on the surface will be more likely to get sealed in by the wax, making it more difficult to get it off later. 
  • Fiberglass waxes are generally safe for use on cars, SUVs, travel trailers, and trucks as well. 
  • Pay attention to other materials on your fiberglass RV. Decals, aluminum sidings, and other materials may require a different type of wax if you want to cover the entire RV.
  • You can use a small piece of fiberglass to test and try out different waxes to see what results you can get. Extra fiberglass also makes it easy to practice your application to get the best results before working on your RV.


Q. What makes RV wax different from normal wax?

A. Generally, the level of abrasiveness is lower than normal waxes. This is so the wax is less likely to scratch delicate surfaces like fiberglass.

Q. What do I need to wax an RV?

A. A simple microfiber cloth or pad is generally all you need to wax on an RV’s surface. You can also check out power applicators to speed things up if you have the experience and skill.

Q. What else do I need to do to clean an RV?

A. You'll need to give your RV a good wash and maybe polish to get the best finish. Some companies offer complete detailing kits, but you can also use individual washes and polishes if you have your favorites. A ladder or pole can also you help reach the RV roof. 

Final Thoughts

Taking the top spot as the best RV wax for fiberglass surfaces is the Meguiar's M6332 Premium Wax for its excellent water-repelling abilities and good looking shine.

Our value pick is the TR Industries Gel-Gloss Wash and Wax. If you want a quick wash-and-wax combo, this is the one to choose.