No passwords, No popups, No cost, No AI:
we earn from 'affiliate link' purchases, making the site possible

Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

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

  The authoritative public forum
  for Metal Finishing 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

(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: