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eBay£42.12Visit shop 4 x U-Pol WELD#2 Weld Through Copper Rich Zinc Primer Spray 450ml Aerosol UPol
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The U-Pol WELD#2 Copper is a high-performance weld-through primer designed for professional automotive technicians, metal fabricators, and restoration enthusiasts who require maximum conductivity and corrosion resistance. By delivering a zinc-rich, conductive barrier, this primer protects metal substrates from rust after welding, though users should note that the spray requires precise surface preparation to ensure proper adhesion and optimal weld quality.
| Colour | Copper |
|---|---|
| Model Part Number | WELDC/AL |
| Brand | U-Pol |
Yes, but it is primarily designed as a primer for the areas between welded seams. Once welding is complete, you should clean the surrounding area and apply a standard automotive primer before top-coating.
When applied in a thin, even coat, it does not negatively impact the structural integrity of the weld. It is specifically designed to be burned through during the welding process.
Yes, the conductive properties make it suitable for TIG, MIG, and spot welding applications.
No, the benefit of this product is that it is designed to be welded through directly, eliminating the need to sand off the primer prior to joining the parts.
No, always use this product in a well-ventilated area or a spray booth while wearing appropriate respiratory protection.
You may have applied the primer too thickly. Ensure the coat is thin and uniform, as excess material can vaporize and cause spatter.
Verify that the metal surface was properly cleaned of rust or paint before applying the primer; poor conductivity is often a result of underlying contaminants.
Invert the can and spray until only propellant comes out after every use. If already clogged, soak the tip in solvent or replace it.
To achieve professional results, begin by cleaning the metal surface with a high-quality wax and grease remover. Sand the area with 80-180 grit abrasive to ensure mechanical adhesion. Shake the aerosol can vigorously for at least two minutes after the mixing ball rattles to ensure the zinc particles are properly suspended. Apply in light, sweeping passes from a distance of 6-8 inches. After usage, invert the can and spray for a few seconds to clear the nozzle and prevent clogging. Store in a cool, dry place away from direct heat sources to maintain the shelf life of the aerosol propellant.
