Carboxane 2100 FC is an isocyanate free, ultra-durable, fast-cure corrosion resistant coating that provides outstanding color and gloss retention for exterior exposures that exceeds many acrylic aliphatic polyurethanes. It combines the chemical resistant properties of epoxies with the weathering characteristics of acrylic-polyurethanes. This tightly cross-linked film results in a finish with outstanding barrier properties. It provides good corrosion protection and can be applied direct to metal (DTM) in exposures designated "urban to light industrial" (C1 - C4 according to ISO 12944). For improved corrosion protection it can be applied over approved primers. It is most often used as the finish coat of a 2 coat system utilizing a zinc-rich primer for maximum corrosion resistance and longevity. These 1 - 2 coat systems can eliminate the need for typical primers and/or intermediate coats to significantly speed up the painting process. This product meets the most stringent VOC regulations for field applied coatings of less than 100 g/l volatile organic content.