As much as three-quarters of all wood-plastic composite decking is made with polyethylene recycled or virgin , a soft plastic that's used for plastic bags and a variety of other products. A smaller number of manufacturers use polypropylene, which is a much harder plastic, or polyvinyl chloride PVC .
When you're looking for the best composite decking for cold climates, choose a product that's dense and extremely moisture resistant. The extent of these dimensional changes has to do with the ratio of wood flour to plastic. Composite boards with a greater proportion of wood flour and a higher density wont change much in dimension
Wood-plastic composites WPCs are composite materials made of wood fiber/wood flour and . This type of WPC is different than the WPC decking and is not intended for outdoor usage. .. WPC sandwich boards consist of wood polymer composite skins and usually low density polymer core which leads to a very effective.
RPI plastic lumber is produced from high-density polyethylene HDPE , colorants pigments and UV inhibitors. RPI Plastic Lumber is: Manufactured to exacting specifications and is resistant to corrosive substances, oil and fuels, insects, fungi, salt spray, and other environmental stresses.
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