Rust removal

[52 Rat]

Originally Posted by Panelman55

I'd apply a light coat of PHOSPHORIC ACID to the metal after the wire brush. Rinse with clean water. Dry with comperssed air or hot air. Then etch prime or por 15. Marine Clean uses PHOSPHORIC ACID as a base. PHOSPHORIC ACID is easy to get from a hardware store in a gallon jug for about $25.00 or so. Follow the directions. I've used it for years with good results, and I haven't killed myself yet.


Panelman55

POR 15 recommends using phosphoric acid before applying the POR 15 paint. POR offers this acid in a convenient spray bottle. I have used it and it work great.