Please bring the primer to room temperature before opening, as otherwise the brush may break. Primer / Adhesion promoter acidic The primer removes moisture from the nail. After the Nail Prep / Spray Prep is completely dry, apply a thin layer to the nail. For this, wipe the brush on the bottle neck or dab it on a paper towel to apply only the required amount of primer to the nail. Allow the primer to dry completely, as it can only then develop its full effectiveness. If applied too thickly, it will only dry on the surface, which can lead to adhesion problems. Since the primer contains acid, it must not come into contact with the skin. The primer is free from HEMA and Di-HEMA, as well as free from TPO