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Cracking/Splitting of highly filled Stryene compound

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Bobfoam

Materials
Jul 11, 2006
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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 cracking of the surface and sides randomly. Does any one have any suggestions with out increasing the density?
 
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