×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Alodine coating

Alodine coating

Alodine coating

(OP)
Have any of you heard the material Alodine?  I believe it is a type of coating that can be used in place of gold metalization, but I'm not sure.
Thanks in advanced for any information.
B

RE: Alodine coating

Hello There,

Alodine is a form of chromate conversion coating typically deposited onto aluminum panels for corrosion protection. It is somewhat conductive and is used heavily on airframe structural members. A contrasting finsh on aluminum is anodizing which is a different manufacturing process and to my knowledege is not conductive. As you are probably aware, gold is a precious metal deposit and heavily used in electrical connectors. Gold and alodine are not typically used in the same applications.  

William H. Bernhart, P.E.


I work as a development engineer for AMP - Tyco Electronics located near Harrisburg, PA. I help design interconnections and electrical connectors for aerospace applications.

RE: Alodine coating

The company I work for dumps Alodine down the drain.  Is there something wrong with that.  Does it get into the water supply?  How toxic or dangerous is this chemical?

RE: Alodine coating

Concerned Citizen,

Alodine is very very toxic.  Anything going down a drain eventualy gets into the water supply.

They must STOP and dispose of it safely.  I'm sure the EPA would have a few words to say to your employer!

                             

Nigel Waterhouse
n_a_waterhouse@hotmail.com
 
A licensed aircraft mechanic and graduate engineer. Attended university in England and graduated in 1996.  Currenty,living in British Columbia,Canada, working  as a design engineer responsible for aircraft mods and STC's.

RE: Alodine coating

I hate to hand it to you...The FEDS/EPA/.. will be like flies on cow manure if they know this is done deliberately..Please do educate your coworkers/ employee...The should be a paper trace telling them how to dispose this material.  Due to tight OSHA regulations and the cost of disposing of the bath used our company farm out all metal finishes to specialized companys...let me know if you need a contact for your Employer.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Resources

White Paper - Considerations for choosing a 3D printing technology
The adoption of 3D printing into major companies’ product development life cycles is a testament to the technology’s incredible benefits to consumers, designers, engineers and manufacturers. While traditional production methods have limitations in manufacturability, 3D printing provides unparalleled design freedom due to the additive method of building parts layer by layer. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close