I can strip 1 square foot of flat sheet metal in 2 minutes with a poly carbide disc. The disc is $4.99 (less if you use a 20% off coupon). I can probably strip 30 square feet (outer surface of hood and 2 fenders) with one disc. Watch the direction of the disc when you come up to an edge or you can ruin the disc. I'm using an electric 4.5" Makita angle grinder.
Wow! I'm going to have to get some of those disc.
I'm now using the flap type disc, the one with multiple layers, and it takes me around an hour and a half to do the bulk of one door. Then there's the spots I cant get to...
But, At that point I'm worn out.
I believe a big part of the problem is the fact that there's so many layers of paint. I'm seeing at least four different colors. All that paint really loads up the disc. I keep it moving fast to keep the heat down and make multiple passes.
I don't know of a mobile sandblaster in my area. I wonder whats the going rate to blast a cab down to bare metal?
