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eBay£61.51Visit shop 6 x U-Pol WELD#2 Weld Through Copper Rich Zinc Primer Spray 450ml Aerosol UPol
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The U-Pol WELD#2 Weld Through Primer is designed for automotive professionals and DIY fabricators who require reliable corrosion protection without compromising weld integrity. Its high-adhesion, zinc-rich copper formula ensures excellent conductivity for spot, MIG, and TIG welding applications, though users should ensure adequate ventilation due to the aerosol application process.
| Colour | Copper |
|---|---|
| Model Part Number | WELDC/AL |
| Brand | U-Pol |
While intended for weld-through applications, it provides excellent rust protection for any bare metal surface.
Yes, it is designed to work with spot, MIG, and TIG welding processes.
It is intended to be encapsulated between metal panels. If used on exterior surfaces, you should sand it and apply a suitable primer-surfacer.
Wait until the primer is touch-dry to ensure the solvents have flashed off, which minimizes smoke and porosity.
Yes, it contains high levels of zinc and copper specifically to maintain electrical conductivity for welding.
The coating may be applied too thick; lightly sand the area or ensure the primer is fully cured before welding.
Invert the can and spray until clear, or remove the nozzle and soak it in a solvent to clear dried material.
Apply a thinner coat; allow for a longer drying time before starting the welding process.
To prepare the surface, remove all loose rust, paint, and contaminants using a wire brush or abrasive disc. Degrease the surface thoroughly with a wax and grease remover. Shake the aerosol can vigorously for at least two minutes until the mixing ball rattles freely. Hold the can 8-10 inches from the surface and spray in light, overlapping passes. After use, invert the can and spray for a few seconds to clear the nozzle. Store the product in a cool, dry place away from heat sources or open flames.
