I have painted a couple bikes for my friends so I thought I would share some tricks I learned in the process.
Step 1: Frame Prep.
- To strip bike frames completely I use brush–on (not aerosol) Aircraft Stripper. With the brush on variety you can load it on, let it dry and get almost all the paint off in an hour or so. Be careful though, this stuff is EXTREMELY TOXIC!
- If you only want to sand down the current paint, my favorite method is to use 180grit wet/dry sandpaper. I keep a bucket next to me and rinse off the paper when its starts to clog with old paint. The wet sanding cuts through the paint pretty quick but it still takes awhile.
- I tape off all the holes and trim the excess with an exacto. I stuff a roll of newspaper in the seat tube because I’ve seen motorcycle builders do this so I feel cool. Get decent masking tape that sticks well but doesn’t pull off paint. I have found that the blue house painters tape doesn’t stick well enough for detail work but is fine for masking big areas.
- If you can, wait for a warm, dry day. It will help the paint bond well.