Base Coat is a light-curing bonding agent used for all LCN modeling resins, for extremely problematic nails. Base Coat is the only LCN bonding material that contains a small amount of acid, which in turn 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 an acid-free bonding agent such as Bonder or Bio Bond.