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Strip & Paint Alum. Frame(5 posts)

Strip & Paint Alum. Framewillride4ever
Jan 14, 2003 11:02 PM
My aluminum frame needs new paint. I want to do this all by my lonesome since there is only one bike paint shop and they charge an arm & a leg. I also want to finish this job for education and satisfaction on working on my own bike. Does anyone have any tips in regards to stripping and painting, for example can I just go to my local hardware store & purchase one of those canned strippers to strip the paint. Would sandblasting an alum frame be Ok. For painting how about using the aerosol paint in a can? Or should I rent a self serve painting booth. Cheers!
re: Strip & Paint Alum. FrameAuriaprottu
Jan 15, 2003 7:53 AM
I've painted several frames, and the hardest part is stripping the frame. If the original paint is well applied, it will take a while (a few hours, working nonstop)to remove. You need to use an aerosol stripper or canned paint remover. You'll need some wire brushes to work into some areas. I have no experience with sandblasting, but you have to be very careful to cover all the holes- I have a frame that someone tried to sandblast, and sand got into the seatstays. Aerosol paint works just fine- make sure you get a good brand like Dupli-color. Use primer, and try to do it in 70 degrees or more. Make sure you mask off the BB shell before you paint- you might have to have the shell rethreaded if you get paint in it.
Airline paint stripper.Dave Hickey
Jan 15, 2003 8:12 AM
I bought Airline(Aircraft?) paint stripper at an autoparts store. I've stripped a couple of aluminum frames with it. No problems at all.
Don't think you need to go to bare metal...retro
Jan 15, 2003 8:33 AM
You should clean it, of course, and scuff it up with 150-grit or so sandpaper to give a good "tooth" for the new paint. But assuming it was painted right to begin with, the primer that's on there is better than you can do at home.
FWIW, I've painted only a couple of frames, but I've been disappointed. It's easy to get a good-looking job with Duplicolor or any decent hardware store paint. The problem comes when you ride it--that stuff is nowhere near as tough as a lot of factory paint. Good prep and several light coats will help, though.
if you do stripdesmo
Jan 15, 2003 8:00 PM
Here's a cool trick I use when I refinish furniture, and should work well on a bike frame as well. To get the stripper and old paint out of the nooks a crannies like the welds, and just to keep the gooey mess down to a minimum. Use sawdust and a heavy scrub brush to remove the stripper, just working handfulls of the stuff over the tubes (after scraping the big the stuff off). You can really work the sawdust into the tight spots with the brush and it will lift all the gunk out clean. The sawdust really soaks up all the goo and is to easy sweep up and throw away. Any local cabinet shop will usually have bins of the stuff they'd be happy to let you haul off a bag of. Make sure you give the frame a good bath when yer through.