Trusted Fence Contractors in Concord, NC

The PVC manufacturing process: Ethylene and chlorine, nature-derived materials, are the basic chemicals utilized in manufacturing PVC. Ethylene is made from crude oil and natural gas; chlorine is made from salt. These gasses are chemically reacted to form ethylene dichloride (EDC). The EDC is heated (or cracked) to produce two gasses: hydrogen chloride (HCl) and vinyl chloride monomer (VCM). Vinyl chloride monomer is the basic building block used to manufacture poly vinyl chloride. The term poly means many. [This polymer is formed when] simple molecules, called monomers, are chained together to form a more complex molecule or polymer. Polymerization is the chemical reaction used to convert VCM into PVC resin. The PVC resin is blended with additives (such as stabilizers, pigments, processing aids, UV inhibitors and plasticizers) to produce powder- and pellet-form compounds-from rigid PVC pipe (having no plasticizers) to very flexible products (including upholstery and wall coverings). [PVC and Fire, Vinyl Council of Canada.]

Virgin vinyl is the term for vinyl products that do not contain PVC from regrind or recycled products. These recycled products, which may contain impurities or lower-grade vinyl, could be imported into an extrusion plant and seriously affect the resilience, impact resistance, and UV-inhibiting properties of the final finished product.

Mildew feeds off organic materials. Vinyl (PVC) is non-organic and therefore does not support mildew. When mildew grows on vinyl, it actually feeds off the organic materials (e.g., dirt) that have become embedded in or stuck to the vinyl. Westech fence profiles have a high-gloss, smooth, non-porous surface, making it very difficult for organic material to attach and therefore does not promote the growth of mildew. The use of non-chalking TiO2 (titanium dioxide) further prevents most mildew. Vinyl fencing that contains chalking TiO2 deteriorates at a much faster rate when compared to non-chalking TiO2. It creates a rougher surface where dirt and mildew could attach more easily. Only under consistently damp conditions will the possibility of mildew occur. A mild solution of bleach and water will easily remove mildew.

Crude oil, natural gas and salt are the raw materials used in the production of poly vinyl chloride (PVC) resin. It is formulated from these premium grade raw materials and additives, including UV inhibitors, impact modifiers, stabilizers and toners.