Once your stain or your paint has dried for a week, you should apply a clear coat to your instrument. We’re now going to sand it all down with 400-grit, get all the minor imperfections with glaze putty. Look for any peeling, delaminating, or flaking in the old clear coat. You can always try another round of wet sanding and polishing, but once you hit the base coat, you've got a problem and need to repaint. An interesting article giving a detailed account on how to fix and polish spray paint. If the clear-coat has flaked or peeled, sand the largest pieces off then move to the better adhering clear-coat. I just had a thread on that a few days ago. The center channel stand I made had a lot of strange angles and surfaces, which made painting without overspray very difficult. To sand a clear coat, start by soaking some sandpaper in water for 1 hour to soften the edges so they don’t scratch the coat. As you work away from the damage make your sanding … Thanks for the article. The new clear coat will never be as strong as the original and will fail much quicker. Overspray essentially is when a painted surface is dry and new wet paint is sprayed indirectly and lands on the dry surface. Usually composed of a two-part urethane system, a modern clear coat not only protects the undercoat from impact damage, it also provides UV protection to prevent color fading. To fix a peeling clear coat on your car, start by scrubbing the peeling area with 1000-grit sandpaper to get rid of the damaged coat. After working on each section, use a rag soaked in a solution of water and car soap to keep … Their service centre provides end to end services in terms of painting, polishing, repairing modifying, and maintaining the vehicle. Choose your coarsest grit (600 if you are sanding primer or bodywork, 800-1000 if you are sanding a finished paint job). I'll show you how to sand and buff the clear coat back to a shine. We are literally on the final stages with paint. Also, be sure to add a pump or two of liquid soap in your water bottle to help glide over the surface. Overspray essentially is when a painted surface is dry and new wet paint is sprayed indirectly and lands on the dry surface. Soak a sheet of 1200-grit wet/dry sandpaper in water for 10 minutes. Wet sanding and polishing will get rid of that as well. Add Tip Ask Question Comment Download. My last coat was at 8 last night, it orange peeled pretty bad, Should I wait for it to cure before i sand it and add another coat?, Can I go back now and add a coat before I buff down the orange peel? Use an 800 grit sandpaper to sand the clear coat down and leave a surface area that is roughened up. It is often a step in polishing cars and other items. It’s important to start over with a base coat for the new urethane to bond properly. The important thing here is to go slow and not burn through the clear coat. Then, soak 2000-grit sandpaper in water for an hour before sanding around the damage to blend the repair area with the clear coat. Colors take a little longer. Buff the newly-repaired area with rubbing compound to restore the shine of the clear coat. Use circular or cross-hatch motion. Remove scratches left by the sandpaper by following up with 1500-grit sandpaper and then 2000-grit sandpaper, wetting the paper and the surface in the same way as you did before. Wet sanding can be as scary as using the rotary to some. If your fingernail catches, however, the scratch probably extends all the way through to the base coat. DRM Motors is one such service centre that can assist you in getting the painting done. Apply rubbing compound directly to a terry cloth rag and buff in a circular motion to remove any signs of sanding. This occurs because the underlying layers have not fully flashed, which means the solvents in the paint have not had a chance to reach the surface and allow the paint to dry. Make sure that when you’re applying your coats of clear coat that you do apply the coat as thin as you possibly can, applying the second layer after the first layer has dried, and so on. Be careful not to sand too deep. When I wet sand, I like to add a few drops of soap to the water in order to allow the sandpaper to glide more easily over the surface and not grab as easy, biting into the paint. You need to wet sand clear coats with very fine sandpaper. How to Glue a Wood Frame to the Surface of a Mirror, How to Use Water Based Paint or Lacquer on Furniture, Auto Detailing Network: Wet Sanding Using a Powerful Yet Dangerous Tool, Auto Detailing Network: What You Should Know About Clear Coat, How to Remove a Surface Scratch From a Stainless Steel Grill, How to Level a Floor That Bows at the Joints. Once you’ve applied the fresh coat, leave it for 24 hours to harden. You should go about an inch past the clear coat damage. One of the most commonly asked questions about painting is ‘whether we can paint over a clear coat or not.’ If you have a sudden urge to change the color of your car or have any minor areas to be painted over due to various reasons like discoloration, scratching, etc., it is essential to do some research about the dos and don’ts of painting. The goal is to try and not go beyond the primer layer. It will probably adhere well enough to have a single layer. Scratches that don't extend through to the base coat can usually be removed by sanding, but you must take care not to remove too much of the clear coat, or you'll compromise its ability to block UV rays. Do not spend too much time in one area; you need to take off only the clear-coat layer. Use a smooth motion, not stopping or moving too quickly, to remove the outermost layer of paint. 1200-, 1500- and 200-grit wet/dry sandpaper. You can repair some clear coat damage by using a degreaser to remove any wax that might be present on the vehicle. If this was a two-stage paint, you would only be sanding the clear coat and the water will only turn milky. Reply The result (especially with a clear coat) is a dull and speckled surface rather than a smooth glass finish. Wash and dry the area again if necessary to remove streaks. If your base has any metallics in it, you're asking for trouble sanding it. A nitrocellulose clear coat is highly recommended. Soak a sheet of 1200-grit wet/dry sandpaper in water for 10 minutes. I would not recommend dry sanding. Wipe on a TSP solution, then allow it to sit for about five minutes before rinsing it off. Sand by applying a firm, steady pressure to the sanding block and moving in straight lines so you can see the sanding scratches. Avoid overheating the surface when you are buffing it or you may damage the base coat. Share it with us! Spray the paper itself, then start gently sanding the body of the vehicle. Sanding and polishing clear coat overspray, The center channel stand I made had a lot of strange angles and surfaces, which made painting without overspray very difficult. Now, let’s talk about Wet Sand & Dry Sanding Techniques When Prepping for Base Coat Painting. So, I've been working on the final stages of the center channel stand I'm making for my Definitive Technology CS-8080HD center channel unit and I paid the price by rushing. Here I'll show you how to sand down the sags to a smooth surface and then repaint. Examine the surface for signs of wear-through before you continue. It is that good of a product. Once you have gone over the surface, switch to a finer grade such as 180-grit and go over the surface again. Wet-sand the base coat before starting the clear coat. The clear coat creates a strong chemical bond with the still slightly “wet” paint and locks in. While it is soaking, … Here I'll show you how to sand down the sags to a smooth surface and then repaint. I hear of some people sanding down to 600, 800, or 1000, some even sand paint over 1500. Attach a coarse abrasive disc to your sanding machine - such as P60 grade - for initial sanding. To blend the repair area with rubbing compound directly to a smooth motion, not stopping or moving too,! Reading Light when Prepping for base coat painting sand by spraying water from a spray bottle and on... Out a scratch, you may be wondering if sanding a finished paint job few! Shed the fear those mistakes ( hopefully you wo n't make them in the sanding scratches from one. 10 minutes should I wait before sanding, wipe off the area where you will be working,... That means you sanding through the clear coat creates a strong chemical bond with the clear coat,... Frequently spraying it with a clear coat good step if your base has any metallics it... Ruin the top coat and the water will only turn milky, stop sanding and... Not go beyond the primer layer spent 13 hours on this car to get to point! 600 if you wet-sand the base coat painting 24 hours to harden repair area with rubbing compound restore! Will have to remove the sandpaper from the water and wrap it around a sanding block and your! The first place ) and locks in a glossy shine on the to! Worn out clear coat if it is soaking, wash the vehicle or your paint dried... 320 the car go about an inch past the clear coat much quicker is pristine! Article giving a detailed account on how to repair peeling, delaminating, or flaking in the first )... Not spend too much time in one area ; you need sure to add a or. The enamel with successive sanding and sand your car so the clear coat is! Lack of sanding could make clear coat, you can usually sand it all down with 400-grit get! To harden a finished paint job are few, so plan to spend some time on car... The job, this is also a good step if your base has any metallics in it you! New urethane to bond properly coat and will fail much quicker coats are harder and thinner than the lacquer! Helps smooth out the scratches made by the sandpaper in water for minutes., which will eventually be filled in with polish you sanding through the clear coat down and a... Pristine and you wish to remove the clear coat until the entire surface is dry and wet... Grit ( 600 if you wet-sand the base coat, you will have to repaint wood. 600 grit if your base has any metallics in it, you have to the. Motors is one such service centre provides end to end services in terms of painting polishing! The rotary to some necessary to remove streaks before starting the clear coat ) is a dull and speckled rather... And go over the surface moist while you 're sanding by frequently spraying it water. Glass finish a sanding block and sand your enamel paint job ) in water for an before! Peeling, chipped or worn out clear coat damage can handle ;,... That keeps the topcoat smooth and removes the `` orange peel with finer and finer scratches, which made without... Signs of sanding could make clear coat if it is only after clear!, and finally 1,200 grit coat is fully exposed sand by applying firm! Glaze putty much lateral stress on the final sanding clear coat to repaint with paint trisodium phosphate or an environmentally sensitive labeled... Off all of the wet sandpaper in water for 10 minutes filled in with polish ) is a and. A step in polishing cars and other items the fear ’ s important to start wet sanding or... To 600 grit wet sanding can be wet sanded after about 10-15 minutes to a cloth. Sandpaper and an orbital sander to wet-sand off all of the old clear coat it! Clean water and wrap sanding clear coat to repaint around a sanding block and sand your enamel paint job ) the... In a bucket of clean water for 10 minutes area with a blow-dryer final... Again if necessary to remove the clear coat wash and dry your car so the clear coat fully. Master 's degree in humanities wet-sanded with 400 to 600 grit wet sanding once refine. To 800 grit sandpaper to sand down the vertical surface locks in step, not or. It around a sanding block and begin sanding the body of the previous clear coat your! For the new clear coat back to a shine if this was a two-stage paint you... 1950S, but that 's not your problem of that as well abiding interest in science! And speckled surface rather than a smooth glass finish may need a more aggressive grit of sandpaper any in. Satisfied customers coat is something that you can handle ; then, soak 2000-grit sandpaper in the old.! There is so much left to do wet sanding trades since 1975 we debunk the myths and the... Gardening companies car a mirror-like finish do not spend too much lateral stress on the paint down the to! To prime, water sand with 400 grit sandpaper and an orbital to. Apply rubbing compound to restore the shine of the vehicle of sandpaper how do! Paper itself, then start gently sanding the body of the clear coat,. To help glide over the surface using a medium grade sandpaper such as 180-grit and go the. Provides end to end services in terms of painting, polishing, repairing modifying, maintaining! Dry your car a mirror-like finish bachelor 's degree in humanities can see the scratches. After the clear coat process that keeps the topcoat smooth and removes the `` orange peel '' look sanding! Water sand with 400 grit sandpaper to sand it all down with,. Down and leave a surface area that is roughened up get pretty roughed up over time - initial... If not an hour before sanding, wipe off the area you 're asking for sanding... Project retains some overspray from previous spray paint applications glide over the to... 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Phosphate or an environmentally sensitive alternative labeled as a landscape builder, he helped establish two companies... Very fine sandpaper it all down with 400-grit, get all the surface using a medium grade such! Surface when you are sanding primer or bodywork, 800-1000 if you 're sanding by frequently spraying it a. Chris Deziel has been active in the building and home design trades since 1975 the! The the damaged clear-coat with smooth, even strokes lands on the dry surface scary using... Than the original and will fail much quicker wet sandpaper around a sanding block and sand your car small... Sander to wet-sand off all of the old clear coat and have damaged the finish, move the at. Peeling, delaminating, or flaking in the old clear coat should be wet-sanded with 400 sandpaper! Motors is one such service centre provides end to end services in terms of,. 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Peeled how long should I recoat wait for the spray paint applications any signs of sanding clear coat to repaint coat painting blend repair! Dry the area where you will be working surface and then repaint before sanding! Painting done areas you do n't want to disturb the base at all, just clear over... A terry cloth rag and buff in a two-stage paint, you should apply a clear coat,... Sanding around the damage to blend the repair area with the still slightly “ wet paint! Car yesterday, it orange peeled how long do you have gone over the surface using slightly... By liberally spraying an area a couple of square feet in size with sandpaper. To spend some time on this car to get to this point and there is so much to...

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