Together, wood chips and plastic made up 95 percent of the material in the composite boards. The other 5 percent were dyes and binders. Their basic formula is still in use by the many manufacturers who sell these boards today, although some substitute virgin plastic when recycled material isn't easily available.
What’s most remarkable about wood plastic composite is that it can be created entirely from recycled materials collected from C&D operations, wood product manufacturing facilities, and more. To top it off, used WPC can even be recycled to create brand new WPC, making WPC the ultimate recyclable commodity.
Wood plastic composite is a new class of composite materials in recent years. It is made of a unique blend of natural wood and plastic fibers. Sawdust, pulp, bamboo, peanut hulls, and unused woodworking materials, like bark, from a variety of projects, are combined with polyethylene, polypropylene, and polyguys chloride, etc. to form this new material WPC.
What Composite Decking is Made Of Essentially, composite decking boards are comprised of a mix of recycled wood fibers and recycled plastic. It's this fusion that gives composite decking its inherent strengths such as lower maintenance, and resistance to insects, mold, stains and fading.
Wood-plastic composites (WPCs) are composite materials made of wood fiber/wood flour and thermoplastic(s) such as PE, PP, PVC, or PLA. In addition to wood fiber and plastic, WPCs can also contain other ligno-cellulosic and/or inorganic filler materials.
The composition hasn't changed much -- most manufacturers still make them from wood dust and recycled or virgin plastic. The difference is that modern boards are capped, which means they are coated with a plastic film which prevents deterioration from moisture. Composite boards look very similar to pure PVC ones, but they aren't the same.
Wood-plastic composites (WPCs) are composite materials made of wood fiber/wood flour and thermoplastic(s) (includes PE, PP, PVC etc.).
Composite decking is typically made from a combination of different materials (namely, wood and plastic), which are processed to give the appearance of wood. Both the wood (which consists of lumber industry byproducts like sawdust, chips and wood fiber) and the plastic can be made from virgin or recycled material [source: Jones ].