Aloha, fun & authoritative answers -- no cost, no passwords, no popups
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Metal finishing Q&As since 1989

-----

How to remove the oxide layer from Sn/Ag surface?

2005

I tried 10% HCL, and noticed that some black dots created on the surface, and I am afraid there are some reaction there.
Could anybody recommend a way to clean the Sn/Ag surface to remove the oxide layer? or any place I can find the methods?
Thank you!

Jane HE
- Hunt Valley, Maryland

Not enough info to give you a good answer. What is the material you are working with. How big are the parts? How many?

AF Kenton
retired business owner - Hatboro, Pennsylvania
2005

Jane:

Do you use inhibited HCl (muriatic acid)? If not, HCl will be very aggressive on most metallic surfaces and will probably over-etch your parts.

Ernie James
- Vista, California, USA
2005

Dear Jane,
I suppose you mean silver plating over tin, you can use a cyanide dip as a pretreatment to remove the sulfuric layer not oxide :).

Regards,

Anders Sundman
4th Generation Surface Engineering
Consultant - Arvika,
Sweden
2005

(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: