Phosphate Acid Rust Treatment

jims-terrano · 07-05-2018, 02:14

Last week I had a pair of wings shot blasted and the bloke that did it gave me some Phosphate Acid and told me to paint it all over the wings, it’ll take about 18 hours to dry. He then said simply sand it smooth and paint over but the treatment even if left will not let the metal rust again.

I’m used to treatment like Fertan that you need to wash off before painting.

Has anyone got any ideas or knowledge of this stuff. I’ve painted it on and has dried rough so looks like a quick sand down would do the job.

07-05-2018, 02:14	#1
jims-terrano Senior Member Join Date: Sep 2004 Location: UK Posts: 12,965	Phosphate Acid Rust Treatment Last week I had a pair of wings shot blasted and the bloke that did it gave me some Phosphate Acid and told me to paint it all over the wings, it’ll take about 18 hours to dry. He then said simply sand it smooth and paint over but the treatment even if left will not let the metal rust again. I’m used to treatment like Fertan that you need to wash off before painting. Has anyone got any ideas or knowledge of this stuff. I’ve painted it on and has dried rough so looks like a quick sand down would do the job.