Polyvinyl chloride, also known as PVC, is a plastic produced by the polymerization of vinyl chloride. It is used with plasticizers to make packaging films, boots, garden hose, etc. Without plasticizers, PVC is used to make pipe, siding, shingles, window frames, toys, and other items. An attractive aspect of PVC for industry is its ability to withstand weathering and its resistance to chemicals and solvents. However, this attractive aspect is the major environmental concern for PVC and many other plastics. The great bulk of such plastic (about 98%) is neither reused nor recycled but occupies ever dwindling landfill space.