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  1. TeckBeng

    ZnO particles in un-valcunised NBR

    Hi In unvulacnised form, when I section cut NBR, I see some white particles under 20X magnification. Got it tested and found to be ZnO. Supplier say it's normal. Anyway to prevent? What could be likely cause? Thanks much for reading.
  2. TeckBeng

    FFKM material in un-vulcanised form

    Hi Does anyone know if this is commercially available? I am looking to mold it by compression molding. Cheers
  3. TeckBeng

    hardness of rubber under higher temp

    @tom1953 thanks for the info on the formulation part, i never thought about it this way :) @stancom, yes, i found the table at katsure-r.com site. Thanks for the pointer. It's good reference. I think i will try use my bench top unit to test.
  4. TeckBeng

    hardness of rubber under higher temp

    Thanks Graham, I have a bench top type machine also...the Bareiss Digi Test II Digital Automated Duro-meter... But i am worried it may damage the electronics inside. From your experience, the hardness will drop somewhat right? cheers
  5. TeckBeng

    hardness of rubber under higher temp

    Hi Is there a standardized method to measure the hardness of rubber (say in Shore A) at higher temperature? If not, anyone try doing this before? Can share your experiences? Cheers

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