Anyone have preferred products for stopping small pits of body rust from spreading? I've got a small (1/2") dimple in the hood that went through the paint and is starting to grow surface rust. I want to seal that in before it spreads or rots through.
Spray paint, brush applied touch-up paint, bondo? Should i sand off the surface rust first, or leave it so the paint has something to grab? I'm not concerned with how it looks so much as stopping the rust from spreading.