Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

finishing.com -- The Home Page of the Finishing Industry

  The authoritative public forum
  for Metal Finishing since 1989

-----

Stripping Tin Plating from Silver

Q. Information for Tin strip from Silver plating.

Louis Hirbour
supplier - Anaheim , California, USA
2004

A. You could try caustic soda ⇦liquid caustic soda in bulk on Amazon [affil link] solution as the solvent and sodium chlorite solution as the oxidant. Am not sure of the effect on silver so keep an eye on it.

Geoffrey Whitelaw
- Port Melbourne, Australia
2004

2004

A. Try 1-HCl OR 2-NaOH 100 G/L +NaCO3 20 G/L --ROOM TEMP

GOOD LUCK

Khair Shishani
aircraft maintenance - Al Ain, UAE

Q. I am an engineer in the plating industry. Currently I am working on a project that requires silver plating as the final finish for electrical contacts. The customer wants selective tin plating on certain parts of the contacts and I need a tin backstrip that will strip flash tin from bleed out but not discolor or strip the silver. Any help would be greatly appreciated.

Thank you,
Kate

Kate Fowler
- Hudson, Massachusetts, USA
July 10, 2014

A. Hi Kate,

You may try MSA base immersion type tin stripper which shall not attack silver.

Regards,
David

David Shiu
- Singapore
July 29, 2014

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories: