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LAUCO Zinc Coat Weld-Thru Primer 15.5 oz, Pack of 2, Zinc Rich Spray for Welding, Anti-Corrosion Coating for Bare Metal, MIG & Spot Welding Safe, Fast Dry Industrial Primer 37518
SKU 37518-2pack

LAUCO Zinc Coat Weld-Thru Primer 15.5 oz, Pack of 2, Zinc Rich Spray for Welding, Anti-Corrosion Coating for Bare Metal, MIG & Spot Welding Safe, Fast Dry Industrial Primer 37518

$29.99 - $29.99
$29.99
$29.99 - $29.99
$29.99
B2B Bulk Pricing Available. Request a quote or call 1-800-761-2955
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The LAUCO Zinc Coat Weld-Thru Primer is a high-performance, zinc-rich coating designed to protect metal surfaces during and after welding. Engineered for professional use, it provides superior corrosion resistance while maintaining excellent conductivity for welding applications.

This advanced formula allows you to weld directly through the coating without compromising bond strength or weld quality. It helps minimize weld spatter and reduces the heat-affected zone, resulting in cleaner and more precise welds.

With its strong adhesion to bare metal, this primer forms a durable protective layer that prevents rust and corrosion, even in hard-to-reach areas between welded surfaces. It is ideal for use in automotive body repairs, metal fabrication, restoration projects, and industrial environments.

The fast-drying aerosol application ensures easy use and efficient workflow, allowing you to complete projects faster without sacrificing performance. Whether you're working with MIG welding or spot welding, this weld-thru primer delivers reliable, professional-grade results.

Packaged in a 15.5 oz (440g) can, LAUCO Zinc Coat is the ideal solution for protecting metal surfaces before welding while ensuring long-term durability and corrosion resistance.

  • Formulated with high zinc content to provide superior corrosion protection between metal surfaces, even after welding. Helps prevent rust formation in welded joints and hidden areas.
  • Designed for weld-through applications including MIG and spot welding. Maintains conductivity while minimizing weld spatter and heat-affected zones for cleaner welds.
  • Provides excellent adhesion directly to steel and untreated metal surfaces, creating a durable protective layer before welding or painting.
  • Features a controlled spray pattern that ensures smooth and even coverage, minimizing waste and allowing precise application on large or detailed surfaces.
  • Built for contractors, workshops, and serious DIY users who need reliable, high-performance adhesive for consistent results across multiple applications.

All orders placed online by 3:00 p.m. Eastern Time will usually be processed and shipped within 24-48 hours. Most standard shipments should arrive in 1 to 6 business days depending upon routing and the distance of the shipping address from our warehouse location.