... and density.propertiesDataapplicationpolyethylene pressure pipeprocessing methodextrusionbase polymerLDPEcarbon black gradeK354carbon black particle size<25nmash content<0.05% ... stability 300°Cmigration stability of colorantno migrationcarbon black concentration in masterbatch 40%volatiles0.05moisture content0 ... pigment masterbatch-any colors,white,red,yellow,black,green,brown,violet,blue,orange