4.8 Other Plastics

A number of other thermoplastics are rotationally moulded commercially. These include polycarbonate (see Figure 4.8) which offers excellent optical clarity, stiffness and toughness and is typically used for light globes. Thermoplastic polyesters and thermoplastic polyurethanes are also capable of being rotomoulded, and products include buoyancy aids and medical skeletons (see Figure 1.18). Other plastics which would come into the category of rotomouldable with difficulty include ABS, acetal, acrylic, cellulosics, epoxy, phenolics, polybutylene, polystyrene, SAN and silicone.