Contact US

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!

*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

Outgassing of CHEM FILM ?

Outgassing of CHEM FILM ?

Outgassing of CHEM FILM ?

Does CHEM FILM outgas more than say a 'standard' aluminum anodizing?  This is for a cleanroom environment.   I've not been able to get any clear direction from industry standards. The best I can get there is an expensive and time-consuming test method!


RE: Outgassing of CHEM FILM ?

Both chemfilm and anodized aluminum are OK at ambient temperature and a normal relative humidity.  I would caution against using chemfilm if heated above 120oF at low R. H., and especially not in vacuum.

There is a lot of weakly bonded water of hydration on the chemfilm surface, and if you should dehydrate the chemfilm by heating or vacuum, it would begin disintegrating into flakes and powder (containing hexavalent chromium).

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


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