Remove rust or sheet metal?

[ChrisM]

The aggregrate on sand paper is aluminium oxide.  If you bast with aluminium oxide it avoids the problem of paint not sticking.  You still have media that needs to be shop vac out of the car, but problem solved.  Just keep the gun moving and shoot at an angle so you don't burn a hole in or warp the metal.

[timmorgan]

I think I'll stay crear of something so controversal. Sandblasting sounds to be the preffered method. What about some feedback on rust encapsulators or rust converters.

[sixt9x33rs]

I think I'll stay crear of something so controversal. Sandblasting sounds to be the preffered method. What about some feedback on rust encapsulators or rust converters.

I have had great luck with evap o rust.
I used POR 15 on my Corvette frame with great luck. DP 90 on my Z frame.