As an Amazon Associate & eBay Partner: we earn from qualifying purchases
Mr. Rogers: "Look for the Helpers. You'll always find people who are helping."

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

-----

Hot dip galvanizing over electroplated steel?

October 15, 2013

Q. CAN I HOT DIP GALVANIZE AN ELECTRO PLATED ITEM SUCH AS A TUBE WITHOUT STRIPPING IT FIRST?

ALFRED HASELBECK
- GAUTENG, South Africa

A. Hi Alfred. That's an almost unqualified "No."

The galvanizing must react directly with the base steel. But if the previous plating is zinc, you might find a galvanizing shop willing to just run the parts through the line, which will strip the old zinc -- but most will probably not want to contaminate their process tanks with your old plating.

Regards,

Ted Mooney, P.E.
Striving to live Aloha
(Ted can offer longterm or instant help)
finishing.com - Pine Beach, New Jersey
October 17, 2013

(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: