×
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

Silicone Rubber that Withstands Caviwipes

Silicone Rubber that Withstands Caviwipes

Silicone Rubber that Withstands Caviwipes

(OP)
Is there a silicone rubber, or something similar, that can stand up to Caviwipes (active ingredients Isopropanol (17.2%) and Ammomium Chloride)?

RE: Silicone Rubber that Withstands Caviwipes

Hmm. Looked in the usual places, and this is the only post I found, so will assume the moderators trimmed any others?

Silicones as a class should not be bothered by isopropanol, but may struggle with ammonium chloride. But most/all silicones are relatively soft, and will get abraded pretty easily by a fabric wipe. What form is your silicone (tube, sheet, gasket, membrane...?) and what are you using it for (liquid or gas seal, permeable membrane, dynamic (shaft or linear?) seal, bladder...)? There are other rubber products that can readily withstand that chemical mix (EPDM is first choice), and hold up better to the mechanical abrasion.

RE: Silicone Rubber that Withstands Caviwipes

You need to figure out if the issue is abrasion or chemicals.
While Silcones can handle high temp they are not abrasion resistant, and they are sensitive to many solvents and chemicals.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube

RE: Silicone Rubber that Withstands Caviwipes

(OP)
I'm expecting multiple wipes per day and we need at least a few months of wear. It will be providing grip on a handle.

RE: Silicone Rubber that Withstands Caviwipes

Any special requirements? Food grade
Or is this just a handle that must be sanitized frequently?

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube

RE: Silicone Rubber that Withstands Caviwipes

(OP)
I'm a little concerned about wear and tear, which could be a problem over the length of the product, and if we dipped it, we would have to dip it again any time it wore down, versus designing a grip that could be slipped onto the handle and snap into a groove if it wears down. I could cycle test the handle and it might hold up just fine. I just don't know.

RE: Silicone Rubber that Withstands Caviwipes

(OP)
It will be sanitized multiple times per day using caviwipes and it will be medical grade.

RE: Silicone Rubber that Withstands Caviwipes

" It will be providing grip on a handle."

Yeah, not a good choice. Silicones are soft, and the ipa makes it temporarily softer; so you have fabric abrasion plus abrasion due to normal use. You could look for a harder durometer, or specify an alk-oxy cure, maybe a few other tricks - if you have a supplier who is knowledgable about the material chemistry, but your choices are pretty limited (you don't see silicone tires for good reason). Or switch to a more durable material. Does the part need to be autoclavable? If not, make if from solid polyethylene?

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