Rust protecting your car

[The Doctor]

i don't know all about it, but a friend of mine toldme that sandblasting with the paint still on isn't a good idea.

Because the paint is very hard (in most cases ) they need to use a big pellet, just to 'come through the paint'. This is not ideal for the bodywork, because there is a chance that the sand just blows right trough it.

@ parts wich have some rust, that isn't a problem, but even good parts of the body may be damaged, and that is not wat you want.

He told me, for a proper sandblast job, you have to sand the whole body first, so that there isn't any paint on it, and then sandblast it (with a much smaller pellet), so that the good parts won't be damaged to bad.