The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - After electrolysis, how do I prevent flash rust?

Davidf · 05-21-2015, 04:07 PM

Ospho is simply diluted phOSPHOric acid. When it dries, it is inert. Should be an affective method in preventing flash rust, if kept indoors as previously mentioned. Another fool proof method is priming with epoxy primer. With epoxy, you can store the panel outside and not worry about rust. If it rusts, you know you have a potential problem area that you can then figure out how to treat a little better (i.e. seam sealer, etc). But, the film thickness must be sufficient.

Good luck.

05-21-2015, 04:07 PM	#11
Davidf Registered User Join Date: Nov 2014 Location: Austin Posts: 749	Re: After electrolysis, how do I prevent flash rust? Ospho is simply diluted phOSPHOric acid. When it dries, it is inert. Should be an affective method in preventing flash rust, if kept indoors as previously mentioned. Another fool proof method is priming with epoxy primer. With epoxy, you can store the panel outside and not worry about rust. If it rusts, you know you have a potential problem area that you can then figure out how to treat a little better (i.e. seam sealer, etc). But, the film thickness must be sufficient. Good luck.