Polyvinyl chloride (PVC)
A thermoplastic used in some composite profiles. WPC does not mean PVC-free; confirm the actual formulation rather than assuming resin identity. Names and abbreviations: vinyl polymer. Related terms: Wood–plastic composite (WPC); Thermoplastic; Polyethylene (PE). Sources: https://research.fs.usda.gov/download/treesearch/42497.pdf, https://research.fs.usda.gov/treesearch/36721
Sources & further reading
- USDA Forest Products Laboratory — Wood/Nonwood Thermoplastic Composites ↗USDA Forest Products Laboratory · web · 2026-10-17
- USDA Forest Products Laboratory — Raw materials for wood-polymer composites ↗USDA Forest Products Laboratory · web · 2026-10-17