Honestly, in many of my projects where I apply a clear coat finish, I will sand between coats but not the final one. Microreplicated 3-D mineral abrasive structures are distributed uniformly across the disc surface and wear evenly for consistent repair and longer disc life. Heres my .02 800 grit scratches will cover with a new coat of clear. Your sand paper grit will depend on how deep the effect is and how thick your base coat is. It has been about 70 days since it was painted. 3.5 Step 5: Wash, Rinse and Dry Again. S. good idea. Wipe off any residue on the surface after compounding the area. 2. cheap gel that has Yellowed out. The only reason to sand between the color and the clear is. It will be difficult to scratch polyurethane with 600 and going coarser risks visible sand scratches in the clear. Unfortunately you will need to sand the surface before applying clear coat in order Then a rotary buffer with a polishing compound is used to remove swirl marks left by the rubbing compound to really make it shine. If we know we are going to be wet sanding a car we will put multiple coats of clear to provide enough material to allow for . I'd then reverse mask that line and It would make it easier to remove sanding marks saving time while buffing out. Ideally it should be re-coated as soon as the the last coat has tacked. Hawk312. Sand the surface to 320-grit. 7. But this was a brand new paint job. 3M 1000, Prepare your scratchpad or sandpaper for wet-sanding. Just be careful not to sand through. In the base/clear system, the clear is higher in solids, and with 3 full coats, it is difficult to sand to primer. Spray the paper itself, then start gently sanding the body of the vehicle. It'll go from rescue guitar to warped firewood in a few minutes. Clear coat spray can - make sure its a 2K product that has its own hardener; Sandpaper kit - 1000 to 2500-grit for dry and wet sanding; Polishing machine with a polishing pad OR a hand drill with a polishing attachment and polishing compound; You also need a garage to keep the car clean and away from dust and flying debris for at least 24 hours. Part 1; paint coat and clear coat I'd get something like 1500 or 2000 grade wet and I'd get something like 1500 or 2000 grade wet and. starting with the 1000 grit, ensuring that the area is wet before sanding. Scrub the area gently to clear away any dust or dirt, then rinse it with a hose. Begin Wet Sanding Make small circular movements over the surface of the wood. Wet sanding is more fun than dry sanding. 4.6 out of 5 stars 140. It depends on what you want to achieve and on the condition of the clear coat. as long as you dont over paint the area base is easy. Replace the lambs wool buffing pad with a polishing pad. it was painted in a personal shop . 1. dont cheap out on paint. Fold the paper in half along the long edge to make a square and wrap it around the block. I like to do a coat of lacquer, dry it for a few hours, wet sand out any zits or fly turds, do another coat and so on.
My procedures: - Sand the surface first with 400 grit to get any defects out. The clear coat goes on a smooth surface, not a rough one. 
For getting the wet sanding fresh clear coat, you should keep sanding to 45 Soak the sandpaper in a bucket of water for at least an hour before you begin. Keep the surface very to level any imperfections in the color coat if you sand. Kick off the preparation by sanding with a wet 1500 grit sandpaper. Base coats are easy cuz they like to flash very quick. I know wet sanding is done to fresh paint jobs to get the most out of the paint and clear. Sanding for a blend should be done with 400 lightly to scuff the area and take the smooth off, then 800 or 1000 to take it down to the deapth you need it. most painters recommend wet sanding the surface then reapplying the clear coat. Trizact abrasive stays sharper longer, reducing material costs. Microreplicated 3-D mineral abrasive structures are distributed uniformly across the disc surface and wear evenly for consistent repair and longer disc life. $68.34 $ 68. Wet sanding is the most aggressive form of paint correction and removes severe clear coat damage. The surface should always be completely clean and dry before applying paint materials. Use 600-grit sandpaper for sanding your clear coat surface.
Letting it harden will help. make sure you keep the 2000 really wet and clean so you dont get anything on the paper to put deeper scratches in the paint. 3. Between coats, the surfaces should be lightly sanded with 320- or 400-grit silicon carbide sandpaper. The 800 will remove the orange peel and 1 finish coat should lay rather flat and give you the results you desire. Hope it helps! Sand by applying a firm, steady pressure to the sanding block and moving in straight lines so you can see the sanding scratches. If you shot the clear over the colour coat whyle the first coat/s were still flashing, you have probably trapped solvent beneith the clear, and that would explane the die back of the clear's gloss. Once the base coat is smooth and clean, starting spraying on about three to four layers of clear coat. Dip the block into a bucket of clean water, and start sanding. Then wipe it off again with more PRE paint prep. Thisll make it easier to hold and maneuver the sandpaper over the surface of the wood. Wash and Blend the New Coating with the Old. However, you still might be able to notice some swirls when the sunlight hits the surface. Begin by wet sanding the orange peel. Don't overdo it. On a side note, someone recommended spraying the clear immediately after the last body coat and the results were great. (In both cases proceed through all buffing stages.) How to wet sand and polish clear coat? At a first step, use 400-grit sandpaper is the best grit to wet sand new clear coat to get rid of those little lugs. Use 400-grit sandpaper is great for wet sanding clear coat off car surface. Eventually, the orange peel and finer scratches in the clear coat will remove easily by wet sanding. rinse away excessive sanding material when needed and keep both the sandpaper and surface well lubricated. If it still looks good when water is over it, that is a good sign. You'll play hell trying to cut and buff clear thats fully cured. For sanding the clearcoat, you need to let it dry, just like you would paint. Buffing is the last step in the process, after the clear is down and sanded. I am in need of some advice and information. It is often a step in polishing cars and other items. 03-17-2007, 08:47 PM.
Step 1. Start wet-sanding, blending the clear coat that you just applied into the surrounding areas. I started with 1500 grit (by hand) and then 3000 grit on a DA (wet).. Many painters do not recommend lacquer clear coat over fresh enamel because the thinning agent within the lacquer may degrade the enamel paint beneath it. Once the base coat is smooth and clean, starting spraying on about three to four layers of clear coat. For the very best finishes, some woodworkers take a final step of wet-sanding the final dried topcoat with silicon-carbide wet-dry sandpaper. 34. of clear on the whole car EXCEPT the trunk lid.. Use water to wet your sandpaper as you sand. Here are the steps the painter took to finish the body: Bob used this 1200 grit wet or dry paper 320 grit hand blocked wet or dry is coarser then I would finish with but if color sanding non-metallic single stage urethane you could get away with it. Wet sanding with high-grit sandpaper(1500-3000 grit) sandpaper will help blend the old paint with the new. I always start with a light first coat to provide a solid "bite" for subsequent coats. When I plan on sanding the CC, I always put on 4 coats of CC, as you will sand 1.5 to 2 coats off. Step 1. If you get a quote you could reduce the price by keying the old paint. Kick off the preparation by sanding with a wet 1500 grit sandpaper. When I sprayed my Nomad, I color sanded every coat with 600 grit wet/dry. Finalize the wash by drying it with a microfiber towel. Clear coat becomes very hard after 24 hours. revealing a fresh layer of clear coat underneath. $68.93. Like was stated don't buff, just sand. This item: 3M 02088 Trizact Hookit 6" P1500 Grit Clear Coat Sanding Disc. Lay down a few coats of primer. Maybe get some rubbing compound and work the scratches. Only 6 left in stock - order soon. To remove clear coat below is a step by step guide; 1. On a side note, someone recommended spraying the clear immediately after the last body coat and the results were great. Wet sanding and polishing the final layer will yield a better result than doing it between each coat. You Have Sand Do Coat Clear Before To Painting .
I recommend sanding the whole area with 400-grit and get it nice and flat. Yes wet sanding is a must if your paint has the "orange peel" effect. Rub the wet sand paper gently atop the surface to even out the scratches and weaken the clear coat. 03-21-2007, 11:32 AM. The clear coat feeling coarse or leaving a sort of misty effect can be due to a few things such as the clear being applied too light, too far, or in high temperatures. Also, make sure that the surface you are sanding is wet too. I only had 2 coats on the trunk. Here is the processes I used: sanding (of course, Epoxy Primer-3 coats, waited a day, 2K High Build primer-4 coats, Base Metallic (Sherwin Williams Automotive) Universal Clear-2 coats (SPI), Inter-Coat Clear (SPI mixed 1:1 with SPI Urethane Reducer. Local Time: 9:20 AM. Step 2 - Wet sand. Mix a capful of car shampoo in a bucket of clean water and wash the car appropriately using the wash mitts. - Then switch to 500 grit to prep it for paint. 6. 2) Next, clean it of any inorganic materials with a solvent based cleaner like Eastwood PRE paint prep and a clean rag.
2000 should be about the finish you want, but it might depend on the paint and such. What you didn't say was what type of clear you had used. 3.4 Step 4: Clay Bar the Area. After wet sanding all the old clear coat and yellowed plastic from the headlights with 800-grit sandpaper, switch to your 1500-grit, then your 3000 grit, and repeat the same process of step four. The first two types only penetrate the clear coat, and sanding can fix them. 1500 to 2000 Grit When you need to smooth out surface imperfections and scratches before and after applying the clear coat, this is the grit range to use. Oct 5, 2021 #3. Spray the base coats, 3 or 4, i would hope to be enough, with the spray on enamel. Im about to roll a coat of cheap thinned hot rod black onto a sanded clear coat cancer car and if i can wet sand down the orange peal, im game! This may be terry cloth or foam. 2. when wet sanding a base coat, only use1500 (you CAN use as low as rough as 1000 but only if you are skilled in not burning through) try not to break thru clear. 1200 grit sandpaper. Paste wood filler, top center, makes a smooth foundation for the finish. If you get yourself the rotary buffer and some good compound you should be able to make that baby showroom condition without sanding. Wet Sanding The Final Coat of Polyurethane Finish. Clean the exterior of your car. The final clear coat can be wet sanded and buffed if needed to get rid of any bugs, dirt or orange peel. If the paint is dry: Sand out fish eyes, and then reapply paint material. Add a fish eye eliminator to the paint before reapplying. Wet sanding and polishing the final layer will yield a better result than doing it between each coat. My main questions are, is it worth just doing the boot and bonnet, or will it not match? 5) Rubbing compound.
Clean the fresh clear coat with a wet sponge. Step 3: Lightly Wet Sand and Polish Clear Coat. Next, take your clear coat and spray. To get out any bubbles, dust, or anything that hits the clear during the shoot.. Suppose you wet sand your paint; remember to clean it with soap and water. As stated above, if it's on top of the base coat, you'll have to sand down to the base coat, lay about one or two coats of base and reapply the CC. Usually when a boat has faded and turned foggy, the gel coat is gone. You can wetsand the flaws out then dust some more color over them areas, or you can wetsand the whole thing and apply another coat, the choice is yours and should be determined by how smooth your paint is and how many flaws need to be removed. Finalize the wash by drying it with a microfiber towel. Rinse the car with clean water after washing. Polyurethane is used on commercial vehicles for a reason.
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