PVC is commonly used for wire & cable appliances, medical/healthcare appliances, tubing, cable jacketing, and automotive appliances. It has good flexibility, is flame retardant, and has good thermal stability, a high gloss, and low (to no) lead content. The neat homopolymer is hard, brittle and difficult to process but it becomes flexible when plasticized. Polyvinyl chloride molding compounds can be extruded, injection molded, compression molded, calendered, and blow molded to form a huge variety of rigid of flexible products. Due to its wide use as indoor and in-ground wastewater piping, thousands and thousands of tons of PVC is produced every year.