This invention relates to {TAIL ~ abrasive compositions} useful in preparing purge compositions for purging plastics processing equipment comprising: at least one abrasive powder comprising a major amount of {HEAD ~ calcium carbonate}; at least one organic rosin material; and at least one surfactant 
This invention relates to { TAIL ~ abrasive compositions } useful in preparing purge compositions for purging plastics processing equipment comprising : at least one abrasive powder comprising a major amount of { HEAD ~ calcium carbonate } ; at least one organic rosin material ; and at least one surfactant
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