>NILA ULTRABOND is one of the most necessary tools in the arsenal of a nail technician. This type of primer is a gentle alternative to acid primer. When acting on the nail plate, ultrabond affects only the surface layers, without changing the natural pH level. Despite this, the acid-free primer also provides reliable adhesion, that is, the adhesion of the natural nail and the artificial material. Nila acid-free primer is perfect for covering nails with gel polish, and is also widely used for thin and sensitive nails, on which the use of an acid primer is categorically not recommended.