Rock Guard Powder Coating
What's Rock Guard Powder Coat?

Powder coating is the modern method of sealing steel against corrosion. It’s been around for years and few boat trailers are “spray” painted anymore. Powder coating equipment is expensive, often running to $250,000+ for a fully functioning system. Some small manufacturers can’t afford the expense and often promote galvanizing as an alternative.

 There is a huge difference is powder coating. Modern powder coat installations provide a tough durable finish. However many smaller companies have cobbled together systems. They don’t clean or prep the steel and sometimes the furnace is nothing more than heaters blowing hot air to melt the powder. You won’t know which you have until a year after you buy the trailer and rust starts to appear.

 Textured powder coating is the most modern and most effective method. Literally only a couple of years old. It requires an expensive ($6000) spray gun. You usually need a couple, they have to be cleaned periodically. Our system sprays powder coat 9 to 11 mils thick. In our system the steel is bead blasted to remove any welding impurities. The powder is sprayed onto an electrostatically charged frame and the powder is melted in an oven at temperatures above 400 degrees for 17 minutes.

bead blast chamber powder coat booth powder coat oven
Our bead blast chamber One of our powder coat booths One of our 400_ degree ovens


our 11mil powder coat

How thick is 11 mil? Run your hand over the top of our trailer, you can feel the textured powder coat.


A lot can go wrong with dirty steel, thin or improperly applied powder coat

bad powdercoat

Steel was not prepped. Dirt shows through the finish. Coating is so thin that street shoes scratch the top frame.

bad powder coating on pontoon trailer frame

Steel sometimes comes from the mill with imperfections. If trailer manufacturers don’t clean the steel these imperfections work their way to the surface. We bead blast our frames and our textured 11 mil, Rock Guard finish is thick enough to cover imperfections. Although we exercise quality control and inspect the steel. If there is a bad piece of steel (above-right) we don’t use it.


WE like to say that you don’t need to know trailers, WE DO. We won’t sell a trailer with a bad finish.