korea sk coil steel coating field application saturated polyester resin (for topcoat) es series index es 450, es 600, es 812, es 850
skybon es topcoat model structure molecular weight t-bent hardness(1) features typical applications es 450 l high 0t f~h metal adhesion flexible top coating for home appliance panels es 600 b 中 2t 2h~…

