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"What is the Alcoa Alumilite 226 process?"

Current question:

April 12, 2021

Q. Where can I obtain a list of the QPL processors for Alumilite 226?

Susan Gailey
- San Antonio, Texas
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Previous closely related Q&A's starting in:

2007

Q. I have a customer looking for hardcoat anodize per Alcoa Alumilite 226. I cannot find anything on search engines or in the Metal Finishing Guidebook. Has anyone heard of it?

Jennifer Masse
Plating shop employee - Buffalo, New York
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2007

A. The Aluminum Anodizers Council has some info on the ALCOA NOMENCLATURE SYSTEM:
http://www.anodizing.org/html/bulletin_2.html

"Alumilite 225 and 226 finishes are produced at 36 amps per square foot in an electrolyte of 12-percent sulfuric acid and one-percent oxalic acid at a temperature of 50 °F. These finishes are not sealed unless they are dyed." Anodizing for 40 minutes gives a coating thickness of 2 mils for Alumilite 226.

Ken Vlach [dec]
- Goleta, California

contributor of the year

Finishing.com honored Ken for his countless carefully
researched responses. He passed away May 14, 2015.
Rest in peace, Ken. Thank you for your hard work
which the finishing world continues to benefit from.

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Ed. note: April 2021: The page that Ken referred to has been moved to:
https://www.anodizing.org/page/alcoa-nomenclature-system

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