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  1. Pete51

    Rubber recipe ammonia

    A peroxide cured EPDM would be an excellent choice. Pete
  2. Pete51

    Autoclave wrap curing liner

    In the 80s and 90s, my days in hose, bladders and autoclaves, we also used nylon. Three cures was max. We also used cotton but, found it adhered to the bladders. Perhaps the thread count was not high enough. We also used aramid wraps but, $ always prevented us from continuing.
  3. Pete51

    Tilt Mixers and Dump Temperatures...

    We work with a company in China that is using a internal/tilt mixer. We will be mixing a mineral (silica) filled NR compound and will be adding silane to it. We believe we will need to mix a masterbatch first and bring the mixing temperature up to and dump at 150C. Our supplier feels his...
  4. Pete51

    Cure systems for Low Compression Set in NR

    Thank you Graham! How about a replacement of TMTD by TETD? Pete
  5. Pete51

    Cure systems for Low Compression Set in NR

    Of the cure systems listed below, which would likely yield the best (lowest) compression set in a Natural Rubber compound? Also, recommendations on a better one would be appreciated. TMTM 0.5 phr Sulfur 0.6 phr TBBS 1.3 phr DTDM 0.8 phr or CBS 1.75 phr TMTD 0.3 phr...
  6. Pete51

    MIL-C-26482 is now MIL-DTL-26482

    What immersion fluid used in for the test described in MIL-DTL-26842? Are there multiple fluids? Is there other information required to determine the fuild to be immersed in as well as the time and temperature? Thanks, Pete

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