soda blasting

I looked at soda blasting because it was cheaper than media blasting, they come to your house, and it is biodegradible. As someone else pointed out it barely touches rust but is great with paint. The down side is you must get it out of every crevice or you are opening a can of worms for future rust. I chose to get my car professionally blasted with Aluminum Oxide for the shell and I am blasting the hood, doors, valances, fenders, and trunklid with glass.