But if you really want to scrimp, ultimately you need to examine your additives?Cthe chemicals that make trim whiter, deckboards stiffer, cores less (or more) foamy, and surfaces less likely to fade in the sun or crumble. Like spices, a little additive can cost a lot. Bill Ross, vice president of sales at Fiberon, says that while wood flour can cost 10 cents a pound and virgin PVC a dollar a pound, an additive can set you back hundreds of dollars per pound.
Anatole Klyosov, a biochemist and former WPC executive, says several lawsuits this past decade involving WPCs appeared to arise from failure to use enough additives. In one case, he says, a manufacturer didn't add enough color pigment, thus leading to fading. Another case stems from a lack of antioxidants.