Caustic Burn on Galvanized Steel... Now What?

JimFergerson

New member
Major amateur mistake... I was totally oblivious to fact that this oven door was galvanized and not stainless steel.

Before d/s the caustic, I rinsed both sides of the door and proceeded to foam the inside. I let it dwell for a few minutes and all the grease and grime washed right off just like an oven door should.

After rinsing, I spun the door around to find this...






The caustic did a fine job of staining the surface, as well as leaving some deep nasty pitting.

I rinsed it for a while, but the damage was already done!


The oven needs to be reassembled and put back into service by Wednesday.


I'm open for suggestions on this one...
 

Kiloman

New member
Get some truck wash acid with hf in it and start with a weak mix and make it stronger if you need to and it will clear those marks right up.
 

JimFergerson

New member
Ya, I have a fresh gallon Hydrus A-Luma Brightener with HF, that i haven't even opened up yet...

I'd definately have to do some testing before getting any farther into it.


I just didn't know what to expect with the galvinized?
 

Scott Stone

New member
Galvanized and acid do not mix. The acid will eat the zinc and create a toxic cloud.

I hate when stuff like this happens.
 

Ron Musgraves

Exterior Restoration Specialist
Staff member
I bought the Stainless in an entire Olive Garden once, 7200.00 I have some really nice stainless tables slightly damaged for sale if that helps ya.

Sorry to hear the problem, I have no answers for this one if it was etched. I hope that the only piece, I know I tried fixing the tables we messed up an only made a couple we practiced on worse. If its only one piece your lucky, if you have others I feel your pain. I hope you find something Jim....

Let us know if you do. Call me I have one other suggestion an not going to put it in print.
 

Ron Musgraves

Exterior Restoration Specialist
Staff member
Get some truck wash acid with hf in it and start with a weak mix and make it stronger if you need to and it will clear those marks right up.

Here's the problem Hal, the metal inside restaurants are not the same quality. Often they are just plated. I'm not saying your idea won't work, he should test on each piece because I have done this myself. The stuff they use in places now is so cheap....junk. Stainless that rust, aluminum like this that is plated so thin.

Just becarefull Jim, Hal's Idea could work. Watch your venting because the metal under the layer can have a nasty reaction.
 

tomtucson

New member
I would try glass polish - looks like clay they have it at the hardware store and I would try a powder called 'it works'.
 

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Kiloman

New member
MMM did think about that here is what will work take that piece off to your local truck stop or mobile polishing guys they will be able to make it at least uniform again.The ones with the high speed buffers not the hand polishing people.
 

Paul Kassander

New member
MMM did think about that here is what will work take that piece off to your local truck stop or mobile polishing guys they will be able to make it at least uniform again.The ones with the high speed buffers not the hand polishing people.

Thats what I was thinking you may be able to buff it out with the polishing compounds.
 
Tom what hardware store do you get this stuff my mother has few windows that have hard water stains that she wants off. Please pm the store name you got the stuff from.
 

tomtucson

New member
The 'it works' powder I got at a janitorial supply - it really works. The glass polish that looks like clay I got at Ace. The polish is pretty worthy stuff, it will work on aluminum and other stuff.
 

JimFergerson

New member
Update

Would you believe White Vinegar and a white No-Scatch pad for glass is doing the trick?


I just did a test spot, and i think it will work most excellent!

Luckily, the area is only 42"X42"...


I haven't decided if i actually want to polish it yet. The door still needs to look 2 years old, to match the rest of the oven.


I'll post up pics before it goes back into service.
:grin:
 

AndyPWS

New member
To get water spots off of glass you can spray windex on it and then wipe it down w/ 0000 steel wool (MAKE SURE IT'S 0000). it will clean it right up. then wash it as usual.
 

pinpointdan

New member
I bought the Stainless in an entire Olive Garden once, 7200.00 I have some really nice stainless tables slightly damaged for sale if that helps ya.

Sorry to hear the problem, I have no answers for this one if it was etched. I hope that the only piece, I know I tried fixing the tables we messed up an only made a couple we practiced on worse. If its only one piece your lucky, if you have others I feel your pain. I hope you find something Jim....

Let us know if you do. Call me I have one other suggestion an not going to put it in print.

Damaged from caustic? I didnt think caustic hurt stainless.
 
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