{"id":"article-what-is-wood-plastic-composite","slug":"what-is-wood-plastic-composite","locale":"en","url":"https://woodplasticcomposite.net/guides/what-is-wood-plastic-composite/","title":"What is wood–plastic composite (WPC)?","description":"What wood–plastic composites are, how their ingredients work together, and why the finished product matters more than the label.","sections":[{"id":"section-0","heading":"Two materials, one system","text":"A wood–plastic composite (WPC) combines wood flour or fibres with a polymer matrix. The matrix surrounds the wood component; the resulting material can be formed into profiles or moulded parts. “Composite” describes the combination, not a guaranteed level of performance.","references":[1],"url":"https://woodplasticcomposite.net/guides/what-is-wood-plastic-composite/#section-0"},{"id":"section-1","heading":"What each ingredient does","text":"The wood component can contribute stiffness. The polymer gives the mixture a continuous, formable phase. Additives help tailor processing and performance. A formulation is therefore a balance between ingredients, their interaction and the way the product is manufactured.","references":[1],"url":"https://woodplasticcomposite.net/guides/what-is-wood-plastic-composite/#section-1"},{"id":"section-2","heading":"Start with the application","text":"A terrace board, a façade panel and an interior moulded component do different jobs. Before comparing products, write down the exposure, loads, appearance and maintenance requirements of your project. Then ask for evidence for the exact profile and installation system being offered.","references":[],"url":"https://woodplasticcomposite.net/guides/what-is-wood-plastic-composite/#section-2"},{"id":"section-3","heading":"Read a specification critically","text":"Separate the material recipe from the finished-product test results. Ask which polymer is used, how the fibre content is stated and whether test specimens match the current product. A high fibre percentage, a recycled-content claim or a long warranty does not answer every performance question.","references":[],"url":"https://woodplasticcomposite.net/guides/what-is-wood-plastic-composite/#section-3"}],"answer":"Wood–plastic composite (WPC) combines wood flour or fibres with a polymer matrix and selected additives. Outdoor profiles commonly use thermoplastics. The composition, geometry and manufacturing process together determine the properties of the finished product.","takeaways":"Source, particle size and moisture limits\nPolymer identity and feedstock controls\nPurpose and verification","table_caption":"Practical comparison checklist","related":["natural-fibres","polymer-matrix"],"version":2,"published":"2026-09-24","modified":"2026-09-24","review_status":"Specialist review not yet recorded","author_id":"editorial","keywords":["Fundamentals","NFC","WPC","what is wood plastic composite"],"change_note":"Expanded reference format with a direct summary, comparison checklist and source links.","categoryId":"cat-fundamentals","topicIds":[],"tagIds":[],"faqIds":["faq-what-is-wood-plastic-composite-0","faq-what-is-wood-plastic-composite-1"],"referenceIds":["ref-15bf0f2785d9"],"heroImageId":"","seoTitle":"","seoDescription":"","noindex":false,"translationGroup":"what-is-wood-plastic-composite","reviewer":"","reviewedAt":"","author":"NFC & WPC Knowledge Reference","canonicalOverride":"","tableText":"Topic | Evidence or meaning | What to check\nWood | Flour or fibres | Source, particle size and moisture limits\nPolymer | Continuous phase | Polymer identity and feedstock controls\nAdditives | Formulation-specific functions | Purpose and verification","references":[{"title":"USDA Forest Products Laboratory · Wood/Nonwood Thermoplastic Composites","url":"https://research.fs.usda.gov/treesearch/42497","publisher":"USDA Forest Products Laboratory","type":"Research publication","accessed":"2026-09-24","description":""}],"faqs":[{"question":"Is WPC the same as solid wood?","answer":"No. WPC combines wood-derived material with polymer and needs its own product documentation."},{"question":"Is every WPC product PVC-free?","answer":"No. The polymer must be identified; the term WPC does not establish that PVC is absent."}]}