Base Coat is a light-curing bonding agent used for all LCN modeling resins, for extremely problematic nails. Base Coat provides maximum adhesion and is perfectly suited for switching clients off acrylics and other gel systems. For maximum results, use Base Coat over a thin layer of Bio Bond. Therefore, the natural nail be be perfectly protected and rejuvenated. After using for 3 months, should be replaced with another bonding agent such Bio Bond or Ultra Bond.