PEOPLE helping each other -- No AI, no cost, no reg'n, no damn popups
(As an Amazon Associate & eBay Partner we earn from qualifying purchases)

Curated with aloha by
Ted Mooney, P.E. RET

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

  The authoritative public forum
  for Metal Finishing 1989-2025

-----

Food Grade Anodized Aluminum

I am designing a container that will be used to hold pharmaceutical pills, typically aspirin. I would like the material to be lighter and cheaper than stainless steel. I have made prototypes of 6061 aluminum with a sulfuric anodize Type II finish (clear). Is this suitable for contact with the aspirin? Should I use Type III hardcoat? Are there any standards (perhaps FDA) that I should review?

Thanks,

Steve Rose
- Minneapolis, Minnesota
2002

2002

Steve,

I don't personally know of any such regulations but letters 10881 and 12047 both discussed FDA approval of anodize. If I recall correctly, aspirin mixed with water is fairly acidic -- you may want to consider the polymer coating used on soda cans (see letter 12170).

Jim Gorsich
Compton, California, USA

(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: