How can I determine the vulcanization system? 2

[CrystalSeal]

We have a feild failed EPDM O-ring which is supposed to be cured by peroxide system. But the field engineer questioned it was actually cured by sulphur. Is there a procedure or quick experiment we can do to confirm the vulcanization system? Thank you for any help.

 

[berti]

Hi all,

it is possible to determine sulfur or the accelerators analytically (take care: in some rare cases sulfur is also used as a coagent in peroxide cure). But if you have only one ring and maybe need the results for legal purposes (claim), it is a job for a professional lab.

Regards

Berti

 

[CrystalSeal]

Berti,

Thanks. That is exactly what I am thinking. It seems I can determine if the system has the sulphur. But I might not be able to tell if the sulphur is for curing. Hopefully I can find a lab from another supplier to do the test for us.

Regards

Crystal

 

[JIM317]

Smithers Scientific can run the analysis for you. You need a reputable lab if you are going to pursue legal eagle stuff. If you have an OK O\ring have it runfor a control