Calcium Carbonate :

Calcium Carbonate (CaCO3) is one of the most widely used Mineral Fillers in the Plastics Industry, and its use in rigid packaging has increased significantly over the years. Once thought of simply as a resin extender, the addition of calcium carbonate in plastics has been shown to contribute to increased performance, improved processing, and improved sustainability of the finished part. Calcium carbonate as a plastics additive is 100% FDA approved, allowing for versatility among applications and use in critical applications in the food packaging, and medical packaging markets.

Magnesium Silicate (Talc) : 

Talc imparts a variety of benefits to polypropylene, for instance higher stiffness and improved dimensional stability. In automotive parts (under-the-hood, dashboard, bumper interiors and exterior trim), household appliances and white goods. It requires advanced milling technology to obtain the finest talc without diminishing the reinforcing power of its lamellar structure. Talc also is used for linear low density polyethylene (LLDPE) antiblocking and as a nucleating agent in semicrystalline polymers. In polypropylene food packaging applications, talc is a highly effective reinforcing filler.