Does Rustoleum Spray Paint Work on Fiberglass? It’s Easy If You Do It Smart

Fiberglass, a plastic resin is seen to be used in cars, boats, home doors, outdoor pools, etc. To give the fiberglass a different look and add an aesthetic value to it, painting is a great way. Now the question is-does Rustoleum spray paint work on fiberglass?

The fiberglass surface being non-porous, slippery, and smooth, it is not that easy to paint with Rustoleum spray paint. But it is not impossible if it accompanies some techniques. It works well on the fiberglass surface. It doesn’t take time to dry and sand.

What Is Rustoleum Fiberglass Spray Paint?

Does Rustoleum spray paint work on fiberglass? – before going into details about it you need to have an idea about this spray paint. Rustoleum fiberglass spray paint is one of the best spray paints for fiberglass. The oil-based paint includes an excellent quality formula. It can withstand the rough weather conditions and keeps the surface corrosion-free and protects it from getting faded away.

Before applying the paint you need to condition the fiberglass. It is a bit time-consuming. But it will make your painting task easier and less stressful. Unlike Krylon spray paint for fiberglass, It does not emit any strong perfume not produce any rough texture

What Kind of Paint Do You Use on Fiberglass?

When you are to use paint on fiberglass you have options. Your choice should be according to the place and use of the fiberglass made product. You may pick the suitable one for you from the following paints –

Acrylic Latex

Acrylic paint gets stuck to the fiberglass fast and this is the most challenging part of painting the fiberglass. Hence, it is considered the best paint for fiberglass. It has very little possibility to crack and blister. It is easy to apply such water-based paint on fiberglass. The paint is environmentally friendly as very few chemicals are used in it. You may choose acrylic latex paint for both indoor and outdoor fiberglass objects.


Urethane is not water-based and mostly depends on chemical solvent. So urethane-based paints might cause health issues. Hence you need to take protective measures while applying the paint – like wearing a mask and performing the task of painting remaining outside the home. You may select such paint for fiberglass made outdoor objects or boats. Using the paint you will get a shiny finish. The paint resists wear and tear. You obviously like it for its high performance.


The blending of acrylic and urethane resin also suits fiberglass. Applying this sort of paint is less time consuming as the fiberglass need not be cleaned before applying the paint. Its adhesive quality is really amazing. The paint contains both acrylic and water-based polyurethane. It easily creates a strong bonding with old paint or dirty surfaces.

How to Apply Rustoleum Spray Paint on Fiberglass?

Before applying any spray paint on any fiberglass surface you need to be strategic. Very good conditioning of the surface offers a shiny look to the surface after being painted with Rustoleum spray paint. Follow the steps as stated below and enjoy the beauty of painted fiberglass objects.

Step 1:

Start preparing the surface. Have some dishwashing liquid to clean the surface of the fiberglass made object. Then rinse the surface well with fresh water, and let it dry fully.

Step 2:

Wash the fiberglass surface thoroughly with the help of a fiberglass cleaner. Scrape the fiberglass by sanding it with the help of sandpaper. It will remove loose paint etc and increase the surface’s strength to grasp the paint well and produce a satisfactory level of painting finish.

Step 3:

Wipe down the fiberglass with a special type of wiping cloth named tack cloth. It helps remove loose particles of dirt, lint, dust, etc. from the surface.

Step 4:

To protect the areas of fiberglass surface which you don’t want to spray paint. To avoid unwanted stains from paint on the large areas below or nearby the fiberglass, take the help of drop cloths.

Step 5:

Start spraying a very light coat of primer on the surface at a regular interval. It will provide an upgraded finish with a professional look. Avoid spraying continuously to have flawless, drip-free, and durable painting.

Step 6:

After applying the primer let it dry and cure completely for 3 to 4 hours. Then apply a coat of acrylic spray paint for fiberglass. Follow the procedure to spray on fiberglass coating, as you did while applying primer.

How to Spray Paint Fiberglass Patio Table?

A fiberglass patio table is light, durable, and cheap. But it fades away with the passage of time. Paint an old table in the following way:

  • Cleaning the surface with detergent and water.
  • Filling up the holes and dents on the table with body filler.
  • Sanding the surface down.
  • Applying acrylic primer on the table.
  • Sanding down the primer.
  • Repeat the steps of applying primer and sanding it down.
  • Spray the paint.
  • Applying a clear topcoat to seal the paint.

Thus, your old patio table gets a new look.


Do I need to prime fiberglass before painting?

The surface of the fiberglass is so smooth and you need not prime the fiberglass before painting. But if the surface is rough, you should prime it. You will have a good painting experience by applying 1 or 2 coats of primer.

Can you spray paint a fiberglass boat?

Before spraying paint on the nonporous surface of a fiberglass boat, you should condition the fiberglass to accept the paint very well. It will create a long-lasting, perfect finish. Choose the best spray paint for fiberglass boats from the paints available in the market.

Can you spray paint a fiberglass shower?

You can use spray paint for fiberglass shower to have an awesome finish on its surface. Applying paint with the help of a paint roller from the can, you can see similar results. But it is time-consuming.

What is the best paint for a fiberglass car?

To get a good result you need three coats of urethane or epoxy primer on the fiberglass car. Choose light and primer coats. It will prevent the collection of paint in a particular place and the rolling down of paints. Ensure that each coat dries well.

Final Words

Does Rustoleum spray paint work on fiberglass? You have already found the reply to your query from the punchy article. Fiberglass is such a material with which most craftsmen have a hard time. None completed the mission without much effort while attempted for the first time. You may need to paint a unique piece of artwork, a boat or something else made from fiberglass to give a decorative touch to such objects and to apply your creativity to your project, you must have your own technique. If you are able to master the strategy, painting with Rust-Oleum spray paint will be no matter at all.

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