What materials are the molded bobbins make of?
There are many types of material that can be used for making bobbins such as High Pressure Styrene, Butyrate, Nylons, Glass Filled Nylon, Phenolic (Bakelite), Polycarbonate, Polypropylene, ABS, PVC etc. There are several other factors that determine what kind of plastic you want to use. Some are the cost per piece, the color and surface finish, the tolerance, impact to wear and abrasion. Materials used for making bobbins can be molded in various colors and custom plastic shops can match the color to your specific needs.