×
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!

*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

SILICON to 6061-T6 ALUM.
3

SILICON to 6061-T6 ALUM.

SILICON to 6061-T6 ALUM.

(OP)
To Whom it may concern,
 
I have designed a low level nuclear waste transportation vessel which has been tested and approved by all regulatory bodies. This container incorporates a 50 duro silicon o-ring gasket which must be reinstalled each time the unit is opened and closed.
In trying to reduce operator exposure time I would like to glue the gasket into place.
The mating material is 6061-T6 aluminum. (radiation levels are not a factor)
I have contacted a number of manufactuers (via. websites) and have yet to receive any form of reply. (5 days-no replies)
 
Does anyone have any recommendations as to which product will be the best for this application?
If so could you send me info. on this product or point me in the right direction? (ei: MSDS, mechanical / chemical properties, product name)
I would be grateful for any help in this matter.

 

RE: SILICON to 6061-T6 ALUM.

RTV silcone will hold it in place but can make replacement of the o-ring difficult because the adhesive must be removed to ensure a good seal on a new ring. It is usually best to mechanically trap the o-ring. A slight dovetail of the groove can hold the ring very securely. Often friction is enough to hold the ring in a groove if the ring is made slightly larger or smaller that the groove or if the groove is slightly narrower than the o-ring. Silicone grease can help to tack the ring into place, but grease will also cause dirt to stick.

RE: SILICON to 6061-T6 ALUM.

(OP)
Thank you, both for your replies.
The closure of this container is such that there is not enough material present to use a mechanical method.
A change in the design would mean I would have to retest the unit, both destructive and non-destructive testing.
This is both expensive and time consuming, its taken almost a year to qualify this design.
I'm afraid my only option is glue.
I will be looking into the products that you have mentioned and hopfully come up with something.
Once again, thank you.    

RE: SILICON to 6061-T6 ALUM.

Plain old super glue (cyanoacrylate) works okay for tacking down O-rings, at least it does well for EPDM.  Does the O-ring material have to be silicone?

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



News


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