General Characteristics of Amorphous Commodity Plastics Low temperature Low strength Good bondability Good machinability Good formabiliy Low cost Amorphous commodity plastics can be considered for applications with an approximate maximum temperature of 180°F. Selecting a plastic material for use in a high temperature environment requires careful review of material properties data. View our interactive Thermoplastics Triangle to compare materials. Explore Amorphous Commodity Plastics ABS Outstanding impact resistant low cost plastic, easy to machine, and thermoform. Acrylic Outstanding strong, stiff, clear plastic available in a variety of brilliant colors and finishes. High Impact Polystyrene High Impact Polystyrene is a low cost, tough plastic, easy to thermoform and fabricate. KYDEX® Thermoplastic Sheet High impact, thermoplastic sheet that is tough, durable, and easy to form. PETG Transparent plastic sheet with good impact resistance and outstanding thermoforming characteristics. PVC Strong, stiff, versatile low cost plastic material that is easy to fabricate, bond, and weld.