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Non-marking shoes

  1. Apr 6, 2009 #1

    Andy Resnick

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    My wife just got a new pair of sneakers with black soles that have a 'non marking' designation. Anyone know how the rubber is treated to be 'non marking'?

    For those that don't understand, 'non marking' means that the soles won't leave black skid marks on gym floors etc. when cavorting about.
     
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  3. Apr 7, 2009 #2

    chemisttree

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    Thermoplastic rubber leaves black marks. Crosslinked (thermoset) rubbers don't mark.
     
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