×
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

Stripping of CARC Coating

Stripping of CARC Coating

Stripping of CARC Coating

(OP)
I have steel components that are coated with the CARC coating specified by the U.S. military and I need to strip this material in a manner that will preserve the surface integrity beneath the coating and not thermally damage the shot peened surface. The coating needs to be stripped in order to inspect the surface prior to fatigue testing. I have tried plastic bead blast, which does not touch this coating and aluminum oxide grit blast, which removed the coating but trashed the surface.The coating vendor does not have any recommendations.

RE: Stripping of CARC Coating

Between plastic beads and aluminium oxide lie several media, including softer oxides and natural materials.  I bet ground walnut shells would be an option for this application.

Another option is dry ice removal.

RE: Stripping of CARC Coating

It is going to be extremely hard to remove the coating without changing the surface profile. I've tried to remove similar coatings epoxy/urethane, epoxy, urethane from steel surfaces using everything in the book including all the above mentioned blast media along with both wet and dry baking soda, wet ice, and mixtures of the above. We had some partial sucess with baking soda on some of epoxies and very few of the epoxy/urethane (weathered).

Our only sucess was using our Pyrolysis Ovens, normally used to remove our process polymer from piping and equipment. If your parts are amenable to this process it would be the way to go as at this process is used to clean painting equipment.

 

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!


Resources