No passwords, no registration, no paywalls, no popups, no AI

As an Amazon Associate & eBay Partner we earn from affil links

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

Search our quarter-million Q&As

Home of the finishing HOTLINE since 1989

-----

Please help me for Coloring of LM 13 piston alloy of aluminum

Hi,

I am quite new one in this field of plating. I want to get gray color on some portion of piston which is manufactured of LM13 aluminum alloy.

Please suggest me, I should use anodizing for just chemical coloring because it should have enough wear resistance. Please help me in this regard: first suggest me which method should be used and secondly give me the complete procedure for getting excellent results. I will be grateful to you all for helping me

Thanks a lot.

Salman Aziz
piston manufacturing - Lahore, Punjab, Pakistan
2005

You can anodize, dye the item grey, and then seal, Aziz.

Alternately you can hard anodize, which will give a grey to charcoal-grey color.

A simple and practical book about anodizing is Robert Probert's "Aluminum How-To"; a more exhaustive coverage of aluminum treatments is Wernick, Pinner & Sheasby's "Surface Finishing and Treatment of Aluminum and its Alloys". As you see, "Complete procedure", fills 2-volume books. Good luck!

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Need quick confidential answers? $25
Need project assistance? $100/hr.

Sorry! Finishing.com is temporarily Read-Only.
Ted Mooney is retiring but I have several offers to take it over.
We're working hard to make sure we find it the best new home.

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: