View Sample Alloy Digest Data Sheet (PDF)Since 1952, Alloy Digest has been the leading reference for materials property data on metals and alloys used throughout the world. Featuring graphs, charts and tables, these sheets give facts and figures on composition or characterization, physical and mechanical properties, heat treatment, and machinability.ISOPLAST* 201 is an opaque, impact modified thermoplastic polyurethane engineering resin for extrusion and injection molding. Its high heat distortion temperature sets it apart from ISOPLAST 101(described in Alloy Digest P-10, October 1989). It has high notched impact strength, excellent chemical and solvent resistance and high abrasion resistance.