Home /
T.O.C.
FAQs
 
Good
Books
Ref.
Libr.
Advertise
Here
Help
Wanted
Current
Q&A's
Search 🔍
the Site

Chime right in! (no registration req'd)

-----

"Effective hard anodize mask sought"



 

Help! :-)

My company manufactures aluminium prismatic components for the aerospace industry. We currently employ a brown wax mask in order to prepare parts for the hard anodizing process. However, the application and removal of the wax is time consuming and is thought to be causing acid attacks on the component during its removal.

Can anybody out there recommend an improved mask that may assist us?

Many thanks for your time.

Ian Jones
- Wolverhampton, England
^


 

Ian,

Check if your folks 'reuse' the wax by putting the wax from the de-wax tank back into the wax tank. If they do you may well of found your problem. We use wax and have no problems, but we never 'reuse' the wax and never put wax removed from cut back operations back in the wax tank.

Martin Trigg-Hogarth
Martin Trigg-Hogarth
surface treatment shop - Stroud, Glos, England
^


 

Ian, apart from waxes there are organic resin "Stop-offs" available from most of the larger Metal Finishing Suppliers.

Good luck.

Patrick Wm. Mc Ilvena
Macdermid - Melbourne, Victoria, Australia
^


 

Thanks for your help guys.

Ian Jones
- England
^


 

Chromic Anodize or Type II conventional sulfuric acid anodize first, seal very well, grind off the areas to be hard coated, then hard coat anodize. The chromic acid anodizing will mask adequately. AES Proceedings 1958, Dr Harold Weisner then of Bendix Kansas City.

robert probert
Robert H Probert
Robert H Probert Technical Services
supporting advertiser
Garner, North Carolina
probertbanner
^


 

Have you tried to use a masking disc, such as aluminum or lead foil discs? They can be cut to shape and will hold up well in your process. There are various polyester and vinyl tapes that can also do the job, though the quality of the vinyl is important, and the cost of polyester can be prohibitive.

Ty Sarajian
- Brookfield, Wisconsin
^


February 4, 2010

Hello,

I am a tool designer for a company in the States that specializes in making precision molded products for selective surface treatment. Aviation in particular is our bread and butter. I just happened to stumble on this thread. I apologize for being vague or if this post is invasive but I just did not see any recommendations for custom hard tooling in the responses.

Regards,

Shane McDonald
- Avon Indiana
^


December 8, 2010 -- this entry appended to this thread by editor in lieu of spawning a duplicative thread

HOW CAN I PROTECT ALUMINUM FROM HARD ANODIZE(TYPE 3) USING CHROMIC ANODIZE(TYPE 1)?

ALI GHANEM
PLATING SHOP EMPLOYEE - ISRAEL
^

none
finishing.com is made possible by ...
this text gets replaced with bannerText
spacer gets replaced with bannerImages

Q, A, or Comment on THIS thread SEARCH for Threads about ... My Topic Not Found: Start 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:

 
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g, Train'g
& Software


About/Contact    -    Privacy Policy    -    ©1995-2021 finishing.com, Pine Beach, New Jersey, USA