×
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!
  • Students Click Here

*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

Jobs

Durometer reading explanation

Durometer reading explanation

Durometer reading explanation

(OP)
Can anyone explain to me the concept of Durometer reading.

Thanks,

mechantaeus.

RE: Durometer reading explanation

Durometer is a method of determining the hardness of rubber and other elastomeric substances.
Usually, the higher the hardness, the stiffer the material.
Roller blade wheels require a stiff elastomer so a high durometer reading is desirable as part of the selection process.

RE: Durometer reading explanation

(OP)
Thanks...how id durometer measured...for eg if I was to measure the durometer of porous plastic  how would I?

Thanks,
-mechantaeus

RE: Durometer reading explanation

For plastic materials as against elastomeric materials and we work with thermosetting plastics which are generally "hard" we use a Barcol hardness tester. Made by Barber Colman, 1354 Clifford Avenue Loves Park, IL but that's an old address and they may have moved.
Porous plastic presents a challenge in that only part of the material is solid.
Assuming that you are interested in measuring the elastic and or plastic strain of a porous plastic material against a given stress I doubt a Barcol will be of much help.
You should be able to get specific information from a rubber products manufacturer. They are familiar with durometer readings. Especially a rubber manufacturer who makes foam rubber. Specialist instrument suppliers would be worth a call as well.

RE: Durometer reading explanation

(OP)
Thanks for the info,we receive porous platic that we use on our vacuum equipment. The porous plastic called porex is wavy before baking. After baking to 279 F it becomes flat . I need a measure of this baked porex.

Thanks,
mechantaeus

RE: Durometer reading explanation

mechantaeus
If I understand it correctly, you are using the porex material as a gasket on vacuum equipment and when you heat to 279 deg. F the porex material goes flat.
If this is correct, the material is undergoing compression-set as a result of heat, compression and time. I had a quick look at the Porex website and some of the material is foamed PE. I doubt this is suitable material for what is described above.

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!


Resources