Rust for rust

[sailormatlac]

"Also, rust works its way out from under paint, it doesn't sit on top of paint like it's been brushed out of a bottle."

Very true ! One way some get that effect is to paint the car with a brown primer then put rubber cement where you want the rust to come thru and then paint the car whatever color you want. After the paint is dry rub on the bumps where the rubber cement is until the cement turns loose and comes off taking the paint with it and exposing the primer underneath. Blend with some chalks and you are done.

Interesting trick. Sounds like the one when you spray water before applying the final paint coat (never tried it).

BTW, using rust powder gives results nearer to fresh rust than old rust that turns brown, almost black. I'm sure it could have it's application were fresh rust is needed. Maybe to weather hopper and gondola interiors.

Matt