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Reply by CharlesNeil

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Posted on Painting Over Rust Question

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CharlesNeil

2069 posts in 3655 days


#1 posted 09-13-2017 02:29 PM

After many years in the auto body business, paint ing over rust doesnt work, in reality it will actually speed it up , and while rust will spread, it takes a long time to go thru, grind it off and paint over and i no time its back and eating inward. you have to sandblast and get ALL the rust.
How ever today there are rust converting primers. Had a friend whos truck frame was in really bad shape, he Wire brushed it and sand blasted it some, to get the worst off and we applied this http://www.homedepot.com/p/Corroseal-Rust-Converter-Primer-82320/202960538
then painted over it with a rust inhibiting paint , thats been about 4 years ago and thus far no sign of rust ..
There are other available ,some in spray cans , but it does seem to work IMO


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