Finishing Talk Forums - The Online Surface Finishing Community - Iron Phosphate Removal

Re: Iron Phosphate Removal

info@finishingtalk.com (skip) — Fri, 11 Dec 2009 20:05:16 +0000

Hammerhead writes:

"My interior oven panels are mild steel that has been phosphate treated. The manufacturer of the oven suggested I powder them with hi temp silver."

Come on! How are you going to do that? P.coat the oven from the inside using a 'frit', a porcelain like substitute. Begs the question how hot IS this oven anyway? Nope.

I find this odd. Being black iron oven panels on the inside of the oven to start with. Iron Phosphated or not. Why didn't the oven mfg finish the job and paint the I.S. of the oven panels? B.R. [Before Rust]

Mild steel or also called black iron panels don't belong inside an oven IMHO.

Every oven I have ever built for a company has been with Ryerson Aluminized sheet steel, both sides, rolled, and tongue and grooved. Usually with 3" or 4" or 6" inches of 4 lb density mineral rock wool for walls and roofs. The floor panels are a wee bit heftier using 6 lb density and 20 ga. Some times I'll pour an insulated cement floor of 4:1; cement and vermiculite and a bit of liquid soap.

Purchase new oven panels, save your money buying high temperature silver paint.

skip.

Re: Iron Phosphate Removal

info@finishingtalk.com (hammerhead) — Tue, 08 Jul 2008 14:45:13 +0000

[quote=DustinGebhardt]

I'm just curious. Why would you want to remove the phosphate before painting?

[/quote] As I understand it Hi temp powders specify that you do not use phosphate. My interior oven panels are mild steel that has been phosphate treated. The manufacturer of the oven suggested I powder them with hi temp silver

Re: Iron Phosphate Removal

info@finishingtalk.com (DustinGebhardt) — Tue, 08 Jul 2008 00:17:25 +0000

I'm just curious. Why would you want to remove the phosphate before painting?

Re: Iron Phosphate Removal

info@finishingtalk.com (SFA) — Mon, 07 Jul 2008 14:41:57 +0000

20% HCL should do the trick.

Iron Phosphate Removal

info@finishingtalk.com (hammerhead) — Mon, 07 Jul 2008 13:27:53 +0000

Is there a way to remove iron phosphate from mild steel in order to apply a high temp powder ?