3M 05917 Weld-Thru II Zinc Primer Aerosol – 12.75 oz –

3M Weld-Thru II is a zinc-rich weld-through primer designed to protect bare metal from corrosion while allowing high-quality spot, MIG, and resistance welding. It provides long-lasting corrosion resistance on overlapping metal panels without interfering with the welding process.

• Zinc-rich, corrosion-resistant coating
• Allows welding directly through the primer
• Ideal for lap joints and replacement panels
• Excellent protection for bare steel
• Fast-drying aerosol formula
• Helps extend repair durability

Recommended for collision repair, panel replacement, structural repairs, and automotive restoration.