3M™ Scotch-Weld™ Metal Primer 3901 is a primer designed for applications using 3M™ Scotch-Weld™ Structural Adhesives. This film and liquid adhesive primer is able to improve metal and glass adhesion. Additional features of this primer include improved corrosion protection and resistance to environmental exposure for metal.

• Improves glass and metal adhesion and resistance to environmental exposure for epoxy and urethane structural adhesives
• Offers improved corrosion protection to metal for long-lasting performance
• Protects cleaned surfaces until bonding operations can be completed
• Metal working, transportation, aerospace, solar energy, wind energy, construction equipment and agricultural equipment.
• Easy application and quick drying