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

EPDM and Stainless steel bonding

EPDM and Stainless steel bonding

EPDM and Stainless steel bonding

Hi guys,
Any idea to bond between EPDM sheet and Stainless steel sheet . We found EPDM sheet can do surface treatment to get rough surface. Any recommend surface treatment for stainless Steel . Please share your thoughts.

Thank you very much for your time and help.

RE: EPDM and Stainless steel bonding

Welcome to Eng-Tips.
Showing your picture in the post so that people can see it, rather than forcing people to download a file, attracts more responses.
Here is your drawing:

You could be talking to an application engineer at either 3M or Hysol/Loctite/Henkel/whatever they're called now to get a recommendation that will include important details like surface preparation.

I can suggest some expensive aerospace structural adhesives that will definitely bond to SS, such as Hysol EA9309.NA, but they're usually very stiff. I don't know for sure if it will work with EPDM, but it probably will. Need to know more information if something less expensive will do.
Can you say if the SS part in your design will have to flex? If so, how much? Trying to estimate the amount of displacement in the joint will give you some upper bound to the modulus of the adhesive you can accept.
Thermal range?
The more you can tell, the better the answers will be.

No one believes the theory except the one who developed it. Everyone believes the experiment except the one who ran it.

RE: EPDM and Stainless steel bonding

Please guys

Surface roughness is NOT the mechanism of adhesion. It is a chemical bond at the interface that provides both short-term strength and long term bond survival. The mechanism of bond degradation is hydration of oxide layers at the metal interface, and this is vital for the stainless interface. It is not all about the adhesive. The surface prep is far more important. And please don't believe the hype from adhesive salesmen that you just need a clean, rough surface. The surface must be clean, but also must be chemically active and then treated to provide hydration resistance. Silanes are best for that but must be applied while the surface is chemically active.

The EDPM may not need chemical treatment, but please recognise that you must bond while the surface is chemically active. In other words bond as soon as possible.



RE: EPDM and Stainless steel bonding

A contact cement would probably work reasonably well.



The problem with sloppy work is that the supply FAR EXCEEDS the demand

RE: EPDM and Stainless steel bonding

I just posted this link in the rubber forum in reply to a question on rubber bonding. It is a review article on rubber/metal bonding. Blakmax, I think you may find it interesting.

RE: EPDM and Stainless steel bonding

Composite Pro

Can you post the link?


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