Although silicone-modified polyester (SMP) and super-polyester coatings are well-suited for specific applications, they cannot provide the same proven long-term performance as 70 percent polyvinylidene fluoride (PVDF) products.
Economic reasons make carbon sheet steel popular for metal roofing, but the material can corrode when exposed to both oxygen and moisture. For this reason, steel typically has a coating, but the protective role differs among products.
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