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OnBuy.com£26.26Visit shop 2 X U-Pol Weld#2 Weld Through Copper Rich Zinc Primer Spray 450Ml Aerosol Upol 5060859872710
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Designed primarily for professional automotive technicians and metal fabricators, U-Pol WELD #2 Copper is a high-adhesion, zinc-rich primer that provides essential rust protection without compromising weld integrity. This conductive spray is ideal for pre-treatment of metal surfaces before spot or MIG welding, allowing for strong, clean welds. A key caveat to note is that while it provides a durable anti-corrosion barrier, it must be allowed to dry completely according to manufacturer specifications to prevent weld spatter or porosity issues.
| Colour | Bronze |
|---|---|
| Model Part Number | WELD#2 |
| Brand | U-Pol |
This product is designed as a weld-through primer. While it provides rust protection, it is not intended to be used as a standalone primer for topcoats; you should use a compatible primer-surfacer over your finished assembly.
It is primarily intended for hidden mating surfaces, such as inside flanges or overlapping panels where moisture can accumulate.
It is highly effective for spot and MIG welding, but always ensure the area is well-ventilated regardless of the welding technique used.
Wait until the coating is touch-dry. Depending on humidity and temperature, this usually takes 10 to 20 minutes.
This primer is specifically formulated for steel surfaces. Check the product data sheet if considering use on non-ferrous metals.
Invert the can and spray for 3-5 seconds to clear the valve, or remove the nozzle and soak it in a solvent cleaner.
The coating layer is likely too thick; ensure a thin, uniform application and allow extra time for the propellant to flash off before welding.
Ensure the surface was sanded to bare metal before application and that the primer has fully cured.
Before application, ensure the metal surface is cleaned with a degreaser and sanded to remove any existing rust or loose debris. Shake the aerosol can vigorously for at least two minutes until the mixing ball rattles freely. Hold the can approximately 8 to 10 inches from the surface and apply using smooth, sweeping motions. Always test the spray on a piece of scrap metal first to gauge flow. Post-use, invert the can and spray for a few seconds to clear the nozzle and prevent clogging. Store the product in a cool, dry place away from direct sunlight and open flames to maintain the integrity of the chemical contents.
