A/F Paint That Won't Come Off

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Dick Dragonette

I recently purchased a 1981 Hunter 30. Last Fall we had the bottom water blasted to remove the many coats of paint and open the many blisters. The blisters are open but much of the paint remains. This paint resists 80 grit sandpaper and water blasting. Any ideas on how to remove it and get down to the gelcoat?
 
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Ed Schenck

Scrape away...

with one of those long handled, four-inch wide bladed scrapers from Loews. I also used one of those wire-brushes with the small scraper on the end of the handle. It was ideal for tight spots around the keel. Use a Dremel or hand file to knock the corners off the scraper blade. This will prevent gouging the gelcoat. Just took my H37C right down to white gelcoat. It's all ready to barrier coat this week. Three coats of Interlux 2000. Lots of work but worth the effort. Good luck. Ed(schencked@bfusa.com)
 
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Mark Johnson

Blasting the bottom

If you are interested in just removing the paint on the bottom they blast the bottom with walnut shells, if you need something more aggressive (and it sounds like you do) to open blisters then you should have the bottom sand blasted. That will open all the blisters and save you money and time in preparation for barrier coating. MPJ
 
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Paul Akers

Try Peel Away

It sounds like you have a severe buildup of paint. There are products on the market that will dissolve the paint and soften it to remove it. There's "Peel Away". Interlux also has a two-part mix of stripper and requires scraping with a putty knife. In both cases sanding is involved as a final step. Either case is labor intensive, but if you are repairing blisters, it is prudent to strip the bottom completely in order to add a barrier coat to the hull after the repairs are affected. I've seen the interlux option used successfully last year when my brother fixed blisters on his boat. Good Luck
 
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biscuit - the type sailors eat.

go shopping

call at the hardware store - home depot probably best if one near you - and buy the scraper in the previous message. then join the local fitness club to get limbered up - important to get all those sinews, etc. stretched out. if you model your hands, buy a pair of thick heavy duty gloves - the ones they use when working on telegraph poles - home depot have them usually. while there ask for some good old elbow grease - patented years ago by 'im up there - but still available. oh yes, the goggles and mask. of course, a few bottles of turpentine, for the hair washing afterwards, unless going discoing every evening that week. delightful job. did ours last year. remember to use best quality bottom paint. cheaper quality needs stripping frequently. done well now, powerwashed when laying up and a course sandpapering - 80 grit - before repainting every spring with the same gooooooooooood quality bottom paint will will disappoint the disco owners for at least ten years or more. perhaps the soundest of recommendations is petit epoxy - proven and well know. cheap paint is the biggest mistake - unless, of course you are into a lot of discoing every year. enjoy yourself for next week thinking of how beautiful you baby will look when you have finished - it will keep you going = or the wife or girl friend, etc. remember, when you have finished, and if there is no resin under the paint, you may be better to slap some on rather than sand the gel coat too much. check with a goooooooooooooooood boat yard or someone who knows plenty. yes - you wil;l get all the advice you need and more! have a delightful week. yours uneviously, biscuit.
 
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