3M™ All Purpose Sealant Primer P591 is a black primer that increases adhesion with polyurethane and SMP adhesive sealants.

• Promotes adhesion and improves bond integrity
• Blocks UV rays
• Used on glass with ceramic silk-screen printing and PMMA
• For use with or without 3M™ Adhesion Promoter AP596
• Adhesion to different substrates such as metal, glass, plastics, wood and concrete