[TheForge] Stainless contamination

[Bruce Freeman]

Oxalic acid is a chelating agent and is effective at dissolving metal ions.  It will not oxidize iron to iron ions, however.
Bruce
NJ

>>> lp.brown at verizon.net 8/23/2005 10:32:09 PM >>>
Ray
Rustoleum sells a cleaner stripper set up of a little white bottle and a 
worthless blue scratch pad, I don't remember what they call it, but the 
paint stores and some hardware stores handle it. It is mainly oxalic (? 
spelling) acid. I used it to clean a bunch of stainless  that was of poor 
grade and in correctly welded. It had rusted exposed to salt air and fish 
guts and this stuff cleaned it up. Using gloves I painted it on with a 
piece of rag, waited a while and used green scratch pads for scrubbing it a 
bit. Worked nicely and the only reoccurrence was very light rust at the 
improper welds

Larry Brown


At 07:22 AM 8/23/2005 -0400, you wrote:
>Hey Guys,
>
>Have a question regarding stainless steel rust contamination.
>
>I made an outdoor bar area for a client's flagstone deck. For the counter 
>top I used a certified commercial grade stainless table and made my own 
>legs then cut out the top for a sink. I left the protective plastic on 
>until shortly before delivery.
>
>Within days the client called and complained about rust. When I checked it 
>out it looked like someone has used steel wool on it. The client says his 
>wife didn't use anything but a sponge.
>
>THe source of contamination is a mystery to me, but that said, any 
>recommendation on the nest method to clean the stainless to prevent 
>further rusting? Also how would one minimize the possibility of future 
>contamination? Some kind of sealer?
>
>I've never really experienced this problem before.
>
>Ray
>
>Ray Miller
>Cincinnati
>
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