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Recent content by Solrubber

  1. Solrubber

    Short shelf life on epdm rubber that contain a lot of clay

    We have adjust the amount of oil to the compound so that we can conserve the same duro. Could the clay absorb more of it over a longer period? Unfortunetly, we cannot keep the clay out of the batch and remixt it just before using it in the extruder, but that would have been a good solution.
  2. Solrubber

    Short shelf life on epdm rubber that contain a lot of clay

    Hello We have developped a rubber epdm carbon black with a high percentage of clay comparativly with other rubber that contain only carbon black. This kind of rubber doesn't have a long shelf life as an ucured rubber. The scorch time doesn't change much but the viscosity goes up so fast that we...
  3. Solrubber

    big bubble in epdm extrusion

    Hello, We are extruding epdm rubber sponge and we have had this trouble for long time. Periodicaly, the extrusion will make big bubble (not the regular cellular bubble sponge) along the smalest part of our design. This appears after the curing. We have augmented the shape of the uncured strip...

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