I like to wet sand for final painting so if youre sanding a 2k primer an epoxy or even a clear coated surface or maybe if you have a car with an already nice paint job on it say you have a red car with a nice paint job but youd like to put a different red hue on it or some kind of metallic maybeall you have to do really is scuff down the clear coat with 400 grit then you can lay your base coat and clear coat right on top of that. Sanding between coats of basecoat should only be done if there is something wrong with the application.
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Sanding after primer car. You would sand the same way as 2k urethane primer400 to 600 grit wet. Under most circumstances you will not need to da sand over your work after wet sanding because wet sanding creates much finer scratches. Car addict garage 298777 views. Wet sanding using water with fine grit sandpaper keeps both the paper and surface free of dust that accumulates from sanding. How to prep a car for paint sand and fill with kevin tetz at eastwood duration. Wet sanding epoxy primer is usually the best way to prep it because epoxy has a tendency to clog paper when sanded dry.
Spray the paper itself then start gently sanding the body of the vehicle. Follow the direction for the primer as far as time between coats. Choose your coarsest grit 600 if you are sanding primer or bodywork 800 1000 if you are sanding a finished paint job. Unlike other types of sanding wet sanding movements should be back and forth in a straight line rather than in circular motions. Wipe the car down again with solvent and a clean rag careful not to use too much or it can wipe off the primer. Once primer is dry you should sand the primer before moving on to the basecoat color.
During this step the surface and paper must always remain wet. In part 6 of hot rods ultimate get to paint and body we show you the correct way to sand prime and pick the best paint for your car. Sanding between coats of primer will just extend how long it takes to complete the phase while sanding at the end of the primer step yields the same results. Fill a bucket with water. Before moving on to paint check the primer. Block sanding primer dos and donts duration.
Wet sand the primer making sure to sand out any drips scratches or other rough spots with 800 1200 grit sand paper.