One-pack WPC masterbatch reduces additive costs

14 September 2006

US company Teknor Color Company has introduced the first biocide-containing colour masterbatch for wood-plastics composite (WPC) decks and other building applications. It enables manufacturers to enhance the appearance and longevity of their products while saving on additive costs. Trade named TEK Deck Pro™, the masterbatch combines colour, UV absorber, and Rohm and Hass Company’s Vinyzene™ biocide into a single ‘package’ product that costs at least 15% less than if the three additives were purchased separately, according to the company.

Teknor Color says it will custom-manufacture TEK Deck Pro masterbatches to meet the colour and UV-protection requirements of individual customers and can also incorporate pigments whose high level of infrared reflectance reduces heat build-up in deck components, which can cause polymer degradation. The function of the UV absorber is to prevent chalking and cracking caused by prolonged exposure to solar UV. The biocide improves aesthetics by controlling fungal growth, which cause staining and makes cleaning of the deck difficult.

While initially focusing on the deck market, Teknor Color sees other WPC applications that can benefit from TEK Deck Pro masterbatch, including fences, railings, and siding, as well as non-construction uses in the marine and other sectors. TEK Deck Pro can be used with polyolefin resins as well as rigid and flexible PVC.