Can you spray paint fibreglass boats?

Did you know you can spray paint fibreglass boats?

Unlike other types of products like timber, metal, etc, fiberglass boat surfaces are nonporous, making them unsuitable for spray painting adhesion. Before you can spray paint any type of fiberglass surface, you will need to employ specific preparation techniques to condition the fiberglass to accept paint, or the finish will peel soon after application. There are several different ways to prepare the fibreglass, the first way is to sandblast the surface however we recommend not to do this as the sandblasting can remove the gel coating and destroy the fibreglass. Second way is to sand the surface with an orbital sander, removing the old paint and bringing the surface back for preparation for spray painting.

Check out the after photo’s of the fibreglass boat we have just completed. The top section our customer had manufactured by a local fabrication company here in Melbourne Victoria, it had to be replaced due to wear and tear. The top section was raw stainless steel and also had to prepared by sanding to ensure the paint will adhere correctly.


We colour matched the entire top cabin to make sure the top section and the cabin looked appealing. The preparation including masking  was necessary to complete the job will a finish our customer was very happy with. Applying an etch primer along with top coats is vital to protect the surface for many years. Over time the weather elements can be harsh so it is very important to be vigilant in maintaining the painted surface by monitoring and re spraying the surface if required especially for steel products because if the paint wears away and the steel surface is exposed it is highly guaranteed it will rust and cause more problems later on.

For any advice on preparation with sandblasting or sanding and best options for spray painting contact the team at Ublast anytime.