3M P591 All Purpose Sealant Primer Black 250ml Adhesion Promoter for Polyurethane Hybrid Sealant Glass Metal Plastic Bonding

3M™ P591 All Purpose Sealant Primer — Black, 250ml

Engineered for professionals who demand reliable adhesion, the 3M™ P591 Sealant Primer is a high-performance adhesion promoter designed to maximize the bonding strength of polyurethane and hybrid sealants on a wide range of substrates. Applied before sealing, it creates a chemically active surface that ensures long-lasting, durable bonds — even in demanding environments.

Key Features

• Universal adhesion promoter compatible with polyurethane and hybrid sealants
• Promotes bonding to glass, metal, painted surfaces, and plastics
• Fast-drying formula for efficient application
• Black color for easy visual confirmation of coverage
• 250ml bottle — suitable for professional and workshop use

Typical Applications

• Automotive glass bonding and windshield replacement
• Industrial sealing and glazing
• Metal and plastic joint sealing
• Construction and facade sealing

Always apply to clean, dry surfaces. Allow primer to flash off before applying sealant.