Formulated to bond to a variety of 'tough-to-paint' surfaces. Its advanced chemistry provides a sound anchor for topcoats while reducing or potentially eliminating the need for sanding dense, glossy surfaces. This product may be used under epoxies, lacquers and products containing xylene or other hot solvents, provided it's allowed to dry for 24 hrs before top coating and tested for compatibility in an inconspicuous area before full coat application. Use where ensuring a secure bond is critical in situations when performance of a traditional water or oil-based primer may be questionable.