UltraBond is an acid free primer used to promote adhesion to the natural nails. It is much safer for natural nails than acid primers without sacrificing performance. UltraBond is a low odor product and does not burn the natural nails or cuticles. Works perfectly with all gel and acrylic systems. To dehydrate the nail plate, cover nails with Pearl Nail Prep and allow product to dry. In case of problematic nails use Pearl Primer first.