Minor bubbling on rocker

burrpenick said

I have used Rustoleum Rusty Metal Primer in the past and felt like it maybe helped, and could probably spray it inside the rocker? I know some of the rust proofers drill a small hole under the sill plate, I cant remember if our rockers have openings on the bottom like I've seen on other cars, but I may be able to squirt some through them if so and not create an access hole on the top. I've also seen Rust Bullet etc, they seem to be fairly expensive too? ANY and ALL ideas and suggestions appreciated!

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I just did this on a B Body. There was a drain hole in the front of the rocker aft of the wheel on the horizontal front of it.
Check there?
I've used Rustoleum RMP for years with good results for this rust stuff.
I like it better than a "coating" which I just feel may hide some continuing problem.
Got a spray gun of some type?
I used a "pressure pot" with a HVLP gun attached and squirted the hell out of it with the car sloping down hill.
It ran out in some seams so I hoped I got it pretty well coated.
Thin it out and do it a couple of times.