{"id":"wpc-tech100-article-091-en","slug":"adhesive-bonding-of-wpc-defining-the-joint","locale":"en","url":"https://woodplasticcomposite.net/guides/adhesive-bonding-of-wpc-defining-the-joint/","title":"Adhesive bonding of WPC: defining the joint","answer":"An adhesive bond is a system of substrate, surface preparation, adhesive and joint geometry. A general claim that an adhesive sticks to plastic does not establish a suitable WPC connection.","author":"NFC & WPC Knowledge Reference","faqIds":["wpc-tech100-faq-091-en"],"tagIds":[],"noindex":false,"related":["wpc-tech100-article-092-en"],"version":1,"modified":"2026-10-15","reviewer":"","sections":[{"id":"technical-context","text":"A cap, a sanded face and a cut end may present different bonding surfaces. Ageing between preparation and assembly can also matter. The intended load and exposure should determine the test brief.","heading":"Technical context","references":[],"url":"https://woodplasticcomposite.net/guides/adhesive-bonding-of-wpc-defining-the-joint/#technical-context"},{"id":"verification-plan","text":"Obtain guidance from the profile and adhesive suppliers. Test representative joints with the proposed preparation and relevant conditioning. Record whether failure occurs in the adhesive, interface or substrate rather than reporting a load without explanation.","heading":"What to measure and document","references":[],"url":"https://woodplasticcomposite.net/guides/adhesive-bonding-of-wpc-defining-the-joint/#verification-plan"},{"id":"practical-decision","text":"Do not substitute an adhesive for specified mechanical fixings without approval. The adhesive's published data may refer to different substrates. Any structural or safety-relevant connection needs project-appropriate verification and a controlled installation procedure.","heading":"Implications for development and specification","references":[],"url":"https://woodplasticcomposite.net/guides/adhesive-bonding-of-wpc-defining-the-joint/#practical-decision"},{"id":"reading-scope","text":"An experimental comparison of plasma surface treatments for WPC adhesion. Use the linked work as related reading. The practical checks above are editorial recommendations, not reported test results or a substitute for product qualification.","heading":"Related reading and evidence limits","references":[1],"url":"https://woodplasticcomposite.net/guides/adhesive-bonding-of-wpc-defining-the-joint/#reading-scope"}],"seoTitle":"Adhesive bonding of WPC: defining the joint | WPC Reference","topicIds":[],"published":"2026-10-15","tableText":"Review step | Evidence to retain\nMaterial and geometry | Exact specimen or product identity\nVerification | Method, conditions and individual observations\nDecision | Approved scope and documented limitations","takeaways":"A cap, a sanded face and a cut end may present different bonding surfaces.\nObtain guidance from the profile and adhesive suppliers.\nDo not substitute an adhesive for specified mechanical fixings without approval.","aiAssisted":true,"categoryId":"wpc-tech100-category-4","reviewedAt":"","change_note":"New focused technical draft; not a product certification or production recipe.","description":"An adhesive bond is a system of substrate, surface preparation, adhesive and joint geometry.","heroImageId":"","referenceIds":["wpc-tech100-ref-plasma"],"review_status":"AI-assisted English editorial draft. Human technical review has not been recorded.","table_caption":"Evidence checklist for adhesive bonding of wpc: defining the joint","seoDescription":"An adhesive bond is a system of substrate, surface preparation, adhesive and joint geometry.","translationGroup":"wpc-tech100-091-2026","references":[{"url":"https://doi.org/10.3390/polym10060643","type":"web","title":"Plasma-treated WPC: adhesion, ageing and surface properties","noindex":false,"accessed":"2026-10-14","seoTitle":"Plasma-treated WPC: adhesion, ageing and surface properties","publisher":"Polymers","description":"Related reading; scope and limitations are identified in each article.","seoDescription":"Related reading; scope and limitations are identified in each article."}],"faqs":[{"question":"What evidence is needed for adhesive bonding of WPC: defining the joint?","answer":"Obtain guidance from the profile and adhesive suppliers. Test representative joints with the proposed preparation and relevant conditioning. Record whether failure occurs in the adhesive, interface or substrate rather than reporting a load without explanation."}]}