Then enlarge the sanded area so you ll have space to feather the edges.
How to repair rust on a truck roof.
Minor surface rust 1.
The rust should be gone but.
Sand through the rust spots down to bare metal.
Rust inhibitor tends to dry quickly.
With all the rust removed the exposed metal that s left is still susceptible to rusting.
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I had rust in the roof of my 1991 dodge ram.
Switch to 120 grit sandpaper to feather the edges of the repair area.
Follow the directions on the rust remover usually spraying or brushing it onto the rust and letting it sit for a few.
Spray the entire area liberally with the rust inhibitor to stop the spread of any new rust before moving on.
Mask off the affected area with paint appropriate tape.
You want a few inches of protection surrounding the rust spot.
Treat the exposed metal with a rust inhibitor.