Does anyone know the name of this rust treatment stuff that comes in a spray can and when sprayed on rust, it turns it back into good solid metal? It is a black spray that I saw at a buddies a while back and it worked wonders. Don't remember what the hell it was called though. Any similar products anyone know of? Thanks.
They are called rust converters, but you are giving them way too much respect. They will not turn rust into good solid metal. What they do is neutralize and stop the rust, converting it to harmless compounds. There is a primer in the can as well.
Well bread and steel are kinda alike in one respect. Once bread is toast, it can't go back to being bread, and once steel is rust, it can't go back to being steel. The stuff you are refering to is called rust encapsulator or rust converter. It changes the rust to a more stable substance, but not back to steel. The best way to deal with rust is to cut it out and replace it with new metal. If you can not do this then it is best to grind it down, etch it with phosphoric acid to get it out of the pits and pores, then seal it with primer and paint. Rust treatments can be pruchased from Eastwood, you can get POR 15, and other products. For small hidden areas, True Value, and or ACE hardware have paint that is INMHO better than rustoleum. diluter Phosporic acid can be had at Home Despot, Lowe's, and other home improvement places usually in the guise of cement/concrete cleaners, and or tile and grout cleaners.
Lots of different brands of rust converters. None will turn rust into "good solid metal". That requires a welder. por-15 rust mort rust bullet and many more. They are all just bandaids. Rust should be removed.
i have used ospho (marine phosporic acid) with pretty good results, i would like to try por-15. i got a quart of rust bullet and found part way through my project that it does not soak very far into rust. it seems to hold great if you get down to the pitted surface but a scrappable layer of rust it can peel off. i wire brushed with a drill and that was not good enough. i did it three times and i could get it to peel off until i got down to some pitted shiny metal then it would not come of exept with a chisel. it gets so hard that it is brittle. if you flex the metal it will crack. then you have lost the protective surface. so... i wonder if por15 or rust bullet would work over a phosporica acid, killing the two birds thing.. jimbo
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