How many times can sheetmetal be media blasted

[Tyson A]

I was given a orignal 68 Camaro door this weekend, but it had been media blasted and then left bare for about 2 years it's pretty much covered in surface rust. I was just wondering if blasting it again would thin it out to much. The guy I got it from does not remember what kind of media was used he just knows it was not sand. Other than that the door has no other damage.

[camaro608]

you could use a very fine sand and sand blast it?
thats a good question

[41565 chevelle]

Try checking into soda (baking) blasting. It is not harmful to the metal and leave a squeaky clean finish!!

[Happyfunballs]

You can have it blasted again, it'll be fine. I would just make sure that it was, in fact, bead blasted the first time. If they used sand the panel will have warped due to heat and will be wavy.

[63SW]

If you use SODA , make sure you wash the entire part down with water and dry it off right away.
BUT YOU HAVE TO WASH IT !

I have parts Soda blasted quite often by a local individual - it does a real good job !

[Zee]

soda will not do much to remove the rust though. It is for removing paint. I had my fenders soda blasted and you can still see a faint image of some of the decals but all of the paint is gone. I had my trunk lid dipped and it looks like a brand new bare metal panel just out of the press.