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

Where the
world gathers for metal finishing
Q&As since 1989

-----

Black Chromating Iron Castings

We want to know how to do black chromating on Iron Castings - the process?

Angou Mourougane
- Coimbatore, Tamil Nadu, India
2002

2002

Your question is broad and vague :-)

Iron is not and cannot be directly chromated. It must be zinc plated or zinc-iron plated first. But most zinc-iron baths are alkaline and may not be suitable for plating onto cast iron. If you tell us who you are, why you want to know, and what you are trying to achieve, we may be able to suggest what to do.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey

Also the part function, and the spec for surface treatment.

Khozem Vahaanwala
Saify Ind

Bengaluru, Karnataka, India

2002

(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: