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 body seam can be covered with primer (apply in two coats).NEW: The practical primer stick is a clean, single application - no need to open it, no separate applicator required.For further information, please refer to the technical data sheet. Note on training obligation according to REACH regulation: From August 24, 2023, all commercial and industrial users must complete training before using this product.