finishing.com -- The Home Page of the Finishing Industry
A website for Serious Education, promoting Aloha,
& the most FUN smiley you can have in metal finishing

HomeFAQsBooksHelpWantedAdvertiseForum
topic 6310

Anodizing 201R5


(2000)

Our anodizer is using the following specification 201R5 for our aluminum components. Does anyone know what this specification means.

Ray Carter
- Shokan New York USA


First of three simultaneous responses-- (2000)

201R5 is an Alcoa designation for a .0002" thick anodize with a brite dip pretreatment.

Chris Jurey, Past-President IHAA
Luke Engineering & Mfg. Co. Inc.
supporting advertiser
Wadsworth, Ohio

luke engineering banner


Second of three simultaneous responses-- (2000)

Its basically a specified designation for the type of finish you are getting. The 201R5 and other coatings from the Aluminum Association (dear god I hope I have that right, its very late :-)) have designations similar to this such as 202R1 and so on and so forth. Basically it would amount to something such as this :

201R5 = Standard Sulfuric Anodize 2.5 micron (or .0001 thickness). Thats the 201 part, the R5 stands for highly specular finish is what the chart from anodizing.org states. Check it out under the reference guides section. That'll give you a little more insight into this.

Matthew Stiltner
plating shop - Toledo, Ohio


Third of three simultaneous responses-- (2000)

The spec you reference is from Alum. Assoc. I do not have 205 R1 but here are the ones I do have.

ALUMINUM ASSOCIATION ANODIC SPECS FOR ALUMINUM

David A. Kraft
- Long Island City, New York



November 8, 2012 -- this entry appended to this thread by editor in lieu of spawning a duplicative thread

Is there an industry or military standard for bright dip? Something to call out in a print, i.e. "Chemical etch per _________."

Peter Hall
- Ellicott City, Maryland, USA


November 12, 2012

A. Hi, Peter.

Someone else may have a better answer for you, but I am not aware of military or ASTM/ANSI standards for bright dipping. We appended your inquiry to a thread which offers some good leads on the R1 and R5 standards from the Aluminum Association. And there is another well known bright dip procedure known as Alzak, formerly an Alcoa standard, and discussed in letter 55394. Finally, there was another proprietary formula for bright dipping from Albright & Wilson, known as "Phosbrite" -- you could try googling that as well. Good luck.

Regards,

Ted Mooney, finishing.com
Teds signature
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey



This public forum has 60,000 threads. If you have a question in mind which seems off topic to this thread, you might prefer to Search the Site

ADD a Q or A to THIS thread START a NEW THREADView This Week's HOT TOPICS

Disclaimer: It's not possible to 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 may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices


©1995-2017 finishing.com     -    Privacy Policy
How Google uses data when you visit this site.