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This is a great DIY project you can knock out at home for under $100, and the results are seriously impressive. You’ll need either some rattle cans or a spray gun. If you’ve got an air compressor with a spray gun, you’ll end up with a much more rugged texture compared to rattle cans—but honestly, nobody’s crawling under your car to critique your skid plate's finish.
The key to a successful job is proper surface prep. Sand the skid plate by hand using 80 to 400 grit sandpaper. For the plastic bumper, skip the sanding—it's too delicate for 80 grit and could damage it, use a 800 grit for that plastic piece or wet sand it with whatever you have.
Once sanded, rinse everything thoroughly. Then go over both pieces multiple times with wax and grease remover. Even a tiny uncleaned spot can lead to adhesion issues and cause the liner to peel later on.
Adhesion promoter is a must. Don’t skimp here—avoid those cheap Rustoleum rattle cans. Invest in a decent-quality adhesion promoter, even if it's a bit pricey. It’s one of the most crucial parts of this whole process.
When applying your coating, start with a very light first coat using overlapping passes from top to bottom. Let it sit for about 20 minutes before going in with your second and third layers.
Honestly, rattle cans are the easiest way to go. If you scratch the finish later, it’s super simple to touch it up. I might have gone a little overboard with Raptor Liner on the skid plate—it looks great, but if I ever need to fix a scratch, it'll be a half-day job. In the end, the texture difference between a rattle can and a spray gun really isn’t noticeable unless someone’s inspecting it up close from underneath the car.
The key to a successful job is proper surface prep. Sand the skid plate by hand using 80 to 400 grit sandpaper. For the plastic bumper, skip the sanding—it's too delicate for 80 grit and could damage it, use a 800 grit for that plastic piece or wet sand it with whatever you have.
Once sanded, rinse everything thoroughly. Then go over both pieces multiple times with wax and grease remover. Even a tiny uncleaned spot can lead to adhesion issues and cause the liner to peel later on.
Adhesion promoter is a must. Don’t skimp here—avoid those cheap Rustoleum rattle cans. Invest in a decent-quality adhesion promoter, even if it's a bit pricey. It’s one of the most crucial parts of this whole process.
When applying your coating, start with a very light first coat using overlapping passes from top to bottom. Let it sit for about 20 minutes before going in with your second and third layers.
Honestly, rattle cans are the easiest way to go. If you scratch the finish later, it’s super simple to touch it up. I might have gone a little overboard with Raptor Liner on the skid plate—it looks great, but if I ever need to fix a scratch, it'll be a half-day job. In the end, the texture difference between a rattle can and a spray gun really isn’t noticeable unless someone’s inspecting it up close from underneath the car.
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