Blasting tecnology has come a long way as we gain more experience with different mediums. Sand seemed good in the beginning. The heat generated by sand will warp larger panels. Even if you adjust your technic, the sand leaves a rough surface that all good painters hate. Mediums like the soda, produce less heat, and a smooth surface. After blasting, the car must be immediately sprayed with heavy duty sealer-primer, or delivered to the body shop for work. Out here in California, I just had my '68 cuda done, inside and out,complete, cost me $2000.
The guy that's gonna paint my 68 Cuda wanted me to strip her down , remove all trim, interior , glass , etc .
Then he will have all the under carriage , engine bay , interior panels , floor boards, door jambs etc sand blasted. All the double panel stuff .
He would then epoxy primer what it stripped .
Paint would then go on the undercarriage , interior , door jambs , window channels , engine bay etc.
I would then bring the car home and put the interior glass , running gear and most of the trim back on .
When Im ready for body work and paint , I'll take it back
This way when the body works done and the cars painted , we wont have to worry about chipping , scratching the paint with the trim.
I don't have a quote on the sand blasting yet , but I do have the car 90% stripped.
He told me not to sand blast the sheet metal panels, he would rather sand it .
Mopardude-There is San Benito Sandblasting near you, but it has gotten mixed reviews around here. The body shop I am currently using swears by a guy in Sacramento. His work was great! All paint, rust, bondo- gone. Smooth clean surface. Very professional place. I will look up his address and get back to you.
For knowledge how do you prevent warping the panels?