The universal adhesion promoter (black primer) provides optimum UV protection for the ProGlass PUR adhesive. As a true all-rounder, the primer can also be used on all other substrates, including PUR beads and overmoulding. No separate activator or transparent primer is required. In addition, the universal adhesion promoter also offers effective corrosion protection, so that any paint damage in the area of the bodywork seam can be covered with primer (apply in two coats) For further information, please refer to the technical data sheet Can be used for 14 days after first opening! Note on the training obligation according to; REACH regulation: From August 24, 2023, all commercial and industrial users must complete training before using this product.