THERMOPLASTIC SHEET AND EXTRUDED SHAPES
— Read Chapter 5 on health and safety
— Obtain professional training and supervision before using power or machine tools
— Wear a dust mask and use a dust-collection system, or vacuum frequently when sanding
— Read MSDS information
Thermoplastics include common household materials such as ABS, acrylic, polystyrene, polypropylene, and polycarbonate. These plastics become liquid when heated to their viscous melting temperature, allowing for mass-production injection-molding. Thermoplastics are also extruded or cast into different sizes of tubing and sheet, readily available through commercial retailers for fabrication.