I have a USA made TIP pressure blaster. It will hold about 90 lbs of sand. If you can do the sandblasting outside, like I do, you can use a real tarp (not a cheesy plastic one) and lay plywood on the tarp, as a pressure blaster works about 5 time better than siphon feed blasters and will blast through the tarp in less than a second (don't ask me how I know that). I use about 80 lbs of pressure. Sandblasting works better, in my opinion) that any other way to quickly remove rust and gives an excellent surface for epoxy primer. Vinegar takes a long, long time to do anything and in my opinion is pretty much worthless. I have done 3 model A's with my blaster - all sheetmetal, frames, chassis parts, subrails, etc. I have yet to see any down sides to sandblasting. Sandblasting is not the most fun thing to do, but works very well. You do need to prime the freshly sandblasted items to prevent surface rust. I have attached a few picture of my sandblasting stuff. You do need a large air compressor.
Last note, a fresh air breathing system and coveralls help a lot to make the blasting experience a little less of a job.
Rusty Nelson
