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  1. Bobfoam

    Air entrapments in closed cell foam rubber

    Thanks for the replys. Our process is faily consistant to an extent. Our closed cell material is mixed thru a Banbury 11D mixer and sheeted onto a skid. The majority of the time the material will sit for approximately 24hrs before entering our extrusion process. Our extrusion process...
  2. Bobfoam

    Air entrapments in closed cell foam rubber

    Hello everyone, We manufacture closed cell foam products at our facility by compression molding. Currently we are experiencing severe air entrapment issues with our SBR/EPDM/Neoprene blend stocks. Could anyone give any ideas why this could be happening all of sudden? Where do entrapments...
  3. Bobfoam

    Internal Mixer Clean out

    Does any one have a suggested formula to clean out a #11 Banbury mixer? Our current cleaner consists of Nitrile, so we are trying to cheapen up the cost.
  4. Bobfoam

    Cracking/Splitting of highly filled Stryene compound

    Hello everyone, I have been working on a blend SBR/EPDM compound with high loading of Pliolite S6B(Styrene). This is a closed cell foam material with low density performed by compression molding extruded profiles then expanded with conventional ovens. I have been encountering problems with...
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