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-----Stripping zinc from steel without damaging steel
Q. Hi,
I am looking for a solution or formula to strip zinc from steel without damaging the steel,specifically zinc from old
1940's steel pennies. I need an alkaline version so as not to rust them (that keeps happening when using HCl to strip). Please email any info or post here.
Thanks,
Gold Touch Inc. - Cleveland, Ohio, USA
2003
A. You could continue to use a 50% HCl to strip with. Rinse them really well, then dip them in an alkaline rinse (pH of about 11) then a Hot Di Rinse. This should help with the rust problem.
Chad Autrymetal finishing - Albuquerque, New Mexico
2003
A. Try adding about 0.5% by volume glycerine to the acid solution. It is a good affordable and available inhibitor. Excellent rinsing is a given.
James Watts- Navarre, Florida
2003
A. Ever try plain and simple caustic soda ⇦liquid caustic soda in bulk on Amazon [affil link] solution? Takes a little longer but gets the job done.
Dipesh GuptaFabrication, Finishing everything - India
2003
A. You can use electrolytic method too (5% zinc chloride or sulphate solution,object=anode(+),and simple 4,5V battery,cathode SS)!
Goran Budija- Cerovski vrh Croatia
2003
How about zinc off of steel or iron? I need to weld some fence parts together and they are zinc coated. I am using the parts to hold together the frame of a mobility chair (long story - I'm trying to find a way to build mobility chairs for under $200)
James Pentz- Clinton, North Carolina, USA
January 15, 2012
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