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
-----

Minimum substrate thickness required for aluminum to be anodized

April 17, 2013

Q. Does anyone know if there is minimum material thickness required for anodic coating class 2 or 3.
I have cartridge that needs to be coated on inside. There is a "U"-shaped .063 thick divider inside the cartridge that divides it into two chambers as such that it has air gap on top and bottom of the divider. Manufacturer says that wall is too thin and acid will eat through the wall when they will try to achieve a uniform coating on inside.
Is this a true statement?

Dmitriy Pats
- Orlando, Florida

A. Hi Dmitriy. Aluminum foil can be anodized, so a material thickness of .063 is not inherently non-anodizable. But that doesn't mean your vendor is necessarily wrong that this part cannot be uniformly anodized without special measures being taken. Send us a drawing of the part for posting if you can.

Regards,

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