Properly Sand A Fiberglass Roof Spoiler

Adding a wing spoiler to your car can make it more aerodynamic and add a little extra flair to your vehicle.

Properly sand a fiberglass roof spoiler.

Painting fiberglass is tricky because the surface is smooth. Sand the fiberglass using a coarse grit sandpaper. Before sanding let the fiberglass sit out in the sun for 2 to 7 days to cure the gelcoat. Jdp engineering lip spoiler front 2004 05 acura tsx carbon fiber atlp roof spoiler fiberglass 2004 08 acura tl all aae0001 honda acura oem a spec aero rear decklid spoiler 2004 08 acura tl non s ua6 08f10 sep medieval pro mugen style tailgate spoiler 2x2 twill weave carbon fiber 1984 87 honda crx.

Fiberglass camper shells are light and durable and can last years if proper care is taken to keep them in good shape. I have mounted a sh t ton of stuff for people rear spoilers rear window spoilers difussors front lips most of the time the 3m heavy duty double sided tape is the best solution. Gm used smc on its fourth gen f body to produce the doors rear deck lid spoiler the sculpted hood of the camaro s z28 ss and firebird s ws6 packages and the roof panel. Make sure you prep both sides clean them properly that could be your issue as well.

Gelcoat is an epoxy or resin based compound that is used to line the molds when making fiberglass components. Mount the sandpaper to a long sanding board for large flat components. The kit came with instructions however didn t come with specific instructions to install this particular roof wing spoiler. It came with screws and the spoiler has no adhesive.

Step 2 prep the houseboat roof if you have a new fiberglass roof then all you ll have to do is sand the surface. The trick is to take your time and go slowly especially. Painting a fiberglass camper shell is unlike painting the surface of a car. Roughing up and scoring the surface allows the applied coating to take a good hold on the underlying roof substrate.

They fade over time but. Painting the spoiler is recommended but not necessary. A fiberglass wing spoiler is very light so does not weigh your car down even as it retains the positive benefits of a wing spoiler. It needs to be rough so the material will adhere to it properly.

Making your own wing spoiler allows you to both customize it according to. If you are working with a new fiberglass component it will have a thin layer of gelcoat on its surface. How to paint fiberglass. For smaller areas or areas with intricate curves a rubber sanding block works well to follow the shape of the piece.

With the right preparatory steps however you can get a smooth professional looking finish. For the first sanding pass use either 120 or 180 grit sandpaper.