×
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

High Temp - Pil Resistant Material

High Temp - Pil Resistant Material

High Temp - Pil Resistant Material

(OP)
Hi!

I've been researching various polymers for a temp range or -40F to 250F, that need to be resistant to 242 oil and 80W90 oil.  

I've found PEEK as an option, but was hoping to find some less expensive options.

Thanks much for your input!

RE: High Temp - Pil Resistant Material

Polyphenyl sulfone is very resistance to car engine oil at operating temperature. I remember Stratasys made a prototype oil filter from that and ran it on a car for quite some time.

Chris DeArmitt PhD FRSC CChem

RE: High Temp - Pil Resistant Material

I do not know what 242 oil is, or what's in 80W90 (hypoid oil?, sulphur additives still used?) but PA 6.6 GF is ok in engine oil to 130ºC

H

www.tynevalleyplastics.co.uk

RE: High Temp - Pil Resistant Material

Are there mechanical property requirements?  PTFE and various fluoroelastomers are used in these types of applications.  For strong and stiff, consider polyamides, PPS, and PEEK.

80W90 is a lubricant used for gear applications such as hypoids for automotive axles.  Yes, they can contain sulfur additives to provide EP (extreme pressure) performance.

RE: High Temp - Pil Resistant Material

(OP)
Sorry....typo...It's 424 oil is hydraulic oil.

Thank you for all of the responses.   

RE: High Temp - Pil Resistant Material

phenolics, different grades are available depending on strength requirements, injection moldedable, cheap <$2/lb, love any hydrocarbon

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