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

TPFE/ Teflon Coating

TPFE/ Teflon Coating

TPFE/ Teflon Coating


If a TPFE applied steel sheet (less than 1mm diameter) is exposed to a temperature of >327C it will disintegrate quickly with in 2 minutes.

Is there any way that i can prolong disingration time to seven minutes? changing thickness? using some special type?

I want to use it on a consumable which is exposed to >1100C for a short period of time. The reason i would prefer TPFE than ceramic coatings is simply becuse of its ease of procurment. I can buy commercial TPFE sheets but cant find any ceramic coating sheets in that small diameter

RE: TPFE/ Teflon Coating

I think it's PTFE but regardless of acronyms, I don't think that a fluoroplastic coating is appropriate for such a high temperature.  As far as I know, there is no plastic/fluoroplastic coating acceptable for temperatures that high.  

You might buy a little more time with a thicker sheet but at 327 Celsius, a 1mm coated sheet gets you two minutes.  You want to get more than 7 at more than 1100 Celsius.  The coating would essentially not be a coating, it would be a have to be a prohibitively huge amount of plastic with a sheet steel coating and then there's the potential issue of what you do with all the teflon you just burned off?  

Can you give more details on what you're trying to do.  How small is the diameter?  There are several metals that can handle the temperature, what is so corrosive that mandates the use of teflon?    

RE: TPFE/ Teflon Coating

Thankyou for the answer Clvet. We have dropped telflon sheet idea.

FYI: the sheet was going to be used against liquid iron short exposure. Which obviously is not possible with teflon ( now we know ).
We will opt for our conventional way of using refractory coatings ( BN or Zr, water based ) instead of teflon.

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


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. 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