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

-----

Zinc Alloy with Black Nickel plating failed Ageing Test

Dear All,

We have problem that Zinc Alloy with Black Nickel plating failed Ageing Test (Tested by our customer). Ageing Test Condition is 70 °C 95 % Humidity and 7 days. Before this, We never do ageing test only corrosion test. It is also difficult to get good result cause zinc alloy material itself is easy to be corroded. Do you have suggestion about this ?

Nur Alidah
QC Section - Tangerang, Indonesia
December 1, 2009

Have you tried using a post dip or some kind of clear coating? Better to ask your chemical supplier which coating is suitable for your plating.

Joko Prasetyo Y
- Bekasi, West Java, Indonesia
December 21, 2009

We already use maximum thickness of superlac (clear coating) which supplier already tested and PASS salt spray test for 120 hrs. Do you have any other information how supplier can give better quality of lacquer/clear coating/superlac?

Nur Alidah
- Tangerang, Indonesia
February 3, 2010

(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: