×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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

Galvanic Corrosion of Aluminum - Best method (s) for isolation?

Galvanic Corrosion of Aluminum - Best method (s) for isolation?

Galvanic Corrosion of Aluminum - Best method (s) for isolation?

(OP)
Hi,

I am looking into using 5052 aluminum in a marine atmosphere
environment and am wondering how to eletrically isolate it
from the stainless steel structures it will be fastened to.
The connections will for the most part be bolted.

Are there special bolt sleeves/isolators etc commonly used
for shipbuilding problems of this nature?

Any info (or info on where to start looking) would be appreciated.

Thanks,

Jason White

RE: Galvanic Corrosion of Aluminum - Best method (s) for isolation?

For light loading we use proseal to isolate the galvanic corrosion.  It lasts ~5 years in a marine enviroment.  For longer times we use Delrin or teflon.  Higher loads you need to consider a structural bedding compound.  We use Dynamold (see there web site) for these in marine application with high loads.

RE: Galvanic Corrosion of Aluminum - Best method (s) for isolation?

(OP)
I HAVE TO FASTEN A "60/61" 2" X 2" X .25" ALUMINUM ANGLE TO CEDAR IN A PIECE OF OUTDOOR FURNITURE. WHAT FASTENERS WILL NOT INTERACT WITH THE ALUMINUM WHEN IT IS WET AND DRY AND HOT AND COLD ETC. I AM ASSUMING STAINLESS BUT WOULD RATHER BE SURE

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


Resources

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