Crown Black™ 325 

Crown Black™ 325 is a high purity washed low volatile bituminous coal. It is finely ground and dried during the milling process to a very fine particle size recommended for use as a filler/extender in a wide variety of applications. Crown Black 325™ has excellent electrical insulation properties and readily disperses in natural and synthetic rubbers.




Hiller Carbon, LLC. is a competitive supplier of specialty carbon products and other minerals to industrial and other chemical industries. Hiller is an integrated energy solutions provider where customized products, distribution and freight expertise create value and deliver results. Hiller Carbon meets the demands and expectations of its customers through a variety of services.


Hiller Carbon, LLC.

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