Mica-Pearl is sometimes abbreviated (MP). This type of acrylic material shows brittleness when turning. Be cautious. It is between Acrylic Acetate and Tru-stone in turning difficultly. This material does a carry a pearlesence quality in the blanks, which catches the viewer’s eye. The blanks are made from a polyester resin and the catalyst hardener. Add some colorants to mix into the resin before it sets. PSI, Hut, Arizona Silhouette, all carry this product. Arizona Silhouette product is labeled under EPR.