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

Al flame spray CT exhaust stack

Al flame spray CT exhaust stack

Al flame spray CT exhaust stack

I have corrosion problems in the exhaust stack of My Pratt & Whitney simple cycle combustion turbines.  A vendor claims he can solve my corrosion problems by flame spraying the lower 20 feet of the exhaust stack with Aluminum (sorry no alloy specifications yet).  Exhaust stack temperatures can exceed 700 degrees F.  Anyone with experience in this area?  Can you advise me in were to get some information?


RE: Al flame spray CT exhaust stack

We met e similar problem recently. The Turbines were standby for emergency need. The exhaust towers were flame sprayed Aluminium. They were in an a North Yorkshire Moorland location.  Early in life they looked very rusty and stained because the sprayed Al is porous and lets in the rain, hence unsightly corrosion. Client wanted to overcoat the surface with a brush applied coating. Problem was that due to porous nature of the surface we could not guarantee any coating would not blister/bubble.  We never yet decided on the best solution to the problem.    I think it is still unsightly rusted. cheers DW

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