Quote:
Originally Posted by vintagesteel
to a point. you cannot finish sand with an electic sander. The orbit is way too aggressive and will leave swirls in your primer/paint. They are best for stripping paint then do the rest of your sanding by hand. thats why air powered DAs have finish DAs. the orbit is alot tighter to get smoother finish. And before someone gets on here saying you should handsand before you paint first anyway, most production shops dont. Most production shops dont touch a piece of wetsand paper either unless they are sanding something for polishing. And most shops I've been to use 1500-2000 dry sanding film on a FINISH DA before polishing.
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he is correct again. My finish da has 1.3 mm of movement and my paper goes to 3000 grit. but hand sanding is the only way to go for a quality job. for our older truck get long blocks. check your local marine supply or paint store for marine blocks. they sell strip paper on rolls in any grit you need as long as you need it.