rust-ospho

MI-Bill · Nov 22, 2020

I have some parts that someone grinded and sanded many years ago. they are now coated in a pretty good film of rust . debating treating with a rust remover before sanding as opposed to sanding first and then treating. Comments? quite a few parts.

showcrop · Nov 22, 2020

It depends on what "a pretty good film" is. The rust converters work very well but they don't penetrate much. If you can scrape much off with something like the edge of a screwdriver you probably should sand or wire wheel first. On sheet metal use a twisted cup type wire wheel, and on the cast iron and heavy steel parts a #80 flap wheel.

Mike(NEOhio) · Nov 22, 2020

Evapo-Rust. Wire brush as best you can, soak and rinse.

Bruce(OR) · Nov 23, 2020

Muriatic acid, Ospho, Electrolysis, Naval Jelly, Vinegar, Pick one, pick all. I suspect it depends on what size and recesses. Treat with what? Paint?

showcrop · Nov 24, 2020

(quoted from post at 21:07:08 11/23/20) Muriatic acid, Ospho, Electrolysis, Naval Jelly, Vinegar, Pick one, pick all. I suspect it depends on what size and recesses. Treat with what? Paint?

Bruce, some simply remove rust while othere convert it to iron phosphate. Iron phosphate is what your air impact wrench sockets are plated with.

FBH44 · Nov 26, 2020

Thing I like about vinegar is if you let things sit for a few days, the rust just falls off, leaves a black oxide as I recall.

Tr4ckz · Feb 14, 2021

I've been reading about using vinegar but I haven't tried it yet.

showcrop · Feb 15, 2021

(quoted from post at 22:58:43 02/14/21)
I've been reading about using vinegar but I haven't tried it yet.

Tr4ckz, some acids simply remove rust while others convert it to iron phosphate. Iron phosphate is what your air impact wrench sockets are plated with.

rust-ospho

MI-Bill

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Mike(NEOhio)

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Bruce(OR)

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showcrop

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FBH44

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Tr4ckz

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showcrop

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