Some people even paint over 280 grit-sanded surfaces. When the time comes to repaint a car, the task isn’t nearly as simple as applying a coat above the older paintjob. Personally, I like to stay in the range of 320-360 which is a good grit to paint over. In an earlier set of circumstances, you might have needed to do the paintjob over again, yet still be at risk of running out along another part of the vehicle. To learn more about what we have to offer, visits our sales pages today! If your surface is an intricate design, you are better advised to use medium course grade to protect the carved design beneath the paint. With a 320-grit piece of sandpaper, paint should come off the vehicle with evenly applied strokes of a disc. Bosch Power Tools – 1250DEVS – with Two Sanding Modes. As such, when people ask what grit sandpaper to use when painting a car, 320-grit is a good choice for large automobiles with thick coats. Now here is a good tip that you need to learn When people ask what grit of sandpaper is suitable for a wet sanding primer, 240-grit is a popular answer, because a wet, folded 240 will generally offer durability during a sanding job. Use the 400 grit paper to block sand and remove any primer runs then 600 grit to provide a good surface for the paint. Spray the paper itself, then start gently sanding the body of the vehicle. How do you remove paint without paint thinner? The reasoning here is that, when dry, 400-grit tends to leave sand on the subject, which can be troublesome as far as finishing work is concerned. Still a more coarse option, 100 to 150 grit is a medium grit size. BASECOAT CLEARCOAT SYSTEM FINAL PAINT GRITS: In the end. A 3 inch grinder with 36 grit to 50 grit is what I normally use, but there are several other options, such as a da sander. On the other hand, 80-grit could more easily work through the layers of paint and primer to reveal the metal surface. Any less than 1200 grit sandpaper may produce scratches that are difficult to buff out. What is the spiritual meaning of the name Rachel? This is the best sander for auto paint removal that we’ve found. Due to the car’s relatively young age, paint is unlikely to have cracked in any spots, and rust has not had the chance to take root anywhere. When the question arises about what grit sandpaper is appropriate for a wet sanding primer, 400-grit is sometimes stressed as better for wet sanding than for dry sanding. Alternately, 40-grit sandpaper can be useful along spots of a vehicle where the surface has been grazed by falling objects, in which case a touch-up might ultimately be necessary. Wagner PaintEater Paint Stripper – Best Overall. If necessary, apply a second coat of stripper. Does Hermione die in Harry Potter and the cursed child? !There’s an art to making a car shine. In any case, rust is cancerous to metal surfaces and must be stopped the moment it begins forming on the panel of a vehicle. This is when grits in the 30s range are most useful. Install an 80-grit sandpaper belt on a belt sander. In this step, you want to use a really fine … With 600-grit sandpaper, it needn’t be as costly or time-consuming, because the raw edges of an unfinished paint job can be sanded back for a recoat and will therefore be ready by the time a new supply of the same paint arrives. Before applying new paint to your car, you’ll need to remove the old paint first. Unlike other types of sanding, wet sanding movements should be back and forth, in a straight line, rather than in circular motions. Sand old paint and primer off of a car using a dual-action sander and 80-grit sandpaper. Sand the paint either to the bare metal, the original primer, or at least sufficiently for the new paint to adhere. Remove the softened paint with a plastic scraper (Image 1). Basic all purpose cleaners like Mr. Clean and Simple Green can be used by wetting the dried. Therefore, while 400-grit is one of the most popular grits of sandpaper, it’s often used exclusively for wet sanding. Thanks to the strength of 320-grit sandpaper, it’s a good option for cars or vans that have been treated with enamel or other hard coats. If there are any rough areas spotted along the surface or edges of a given panel, 400-grit could be used to smooth the metal out in a way that lower grits might be incapable of. Festool ETS 150/3 EQ Random Orbital Sander. You’ve been successfully subscribed to our newsletter! This sandpaper is still not recommended on materials you don’t want potentially scratched or damaged, but it will remove your rust faster. For heavy sanding and stripping, you need coarse sandpaper measuring 40- to 60-grit; for smoothing surfaces and removing small imperfections, choose 80- to 120-grit sandpaper. 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