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Thermoset Composites
Hubercarb® Product Recommendations:
Ground calcium carbonate is widely used in thermoset applications. It is a key extender in fiberglass reinforced polyester applications such as Sheet Molding Compound (SMC) and Bulk Molding Compound (BMC) where it functions as a cost-effective extender with no adverse effects on processing or final physical properties. It is used for viscosity control, to limit shrinkage and as a coefficient of thermal expansion.
Because of their morphology, the Hubercarb® W products are less abrasive than most other calcium carbonates.
