General Characteristics of Semi-Crystalline Commodity Plastics Low temperature Low strength Good chemical resistance Low moisture absorption Low cost Semi-crystalline 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. HDPE Durable, versatile, low cost, abrasion and chemically resistant plastic material. LDPE Soft, flexible, lightweight plastic material that is easy to fabricate and form. Polypropylene Low cost, chemical resistant plastic with excellent aesthetic qualities. UHMW Extremely tough abrasion resistant, low cost plastic, used for a wide range of wear applications.