Best current price£51.66from eBay
Shopping.co.uk recommended and popular offers
eBay£51.66Visit shop 5 x U-Pol WELD#2 Weld Through Copper Rich Zinc Primer Spray 450ml Aerosol UPol
Visit shop2 offers from £51.66 - £57.06
View price history by clicking the chart icon.
The U-Pol WELD#2 Weld Through Primer is designed for automotive technicians and metal fabricators who need a reliable, conductive coating for metal surfaces before welding. Its primary benefit is providing superior rust protection in areas that will be hidden after assembly, such as overlapping panels, while maintaining electrical conductivity for spot, MIG, and TIG welding. A key caveat to keep in mind is that proper surface preparation is essential, as the primer will not adhere effectively to oily or oxidized metal.
| Colour | Copper |
|---|---|
| Model Part Number | WELDC/AL |
| Brand | U-Pol |
Yes, once the welding is complete, you can typically use standard automotive primers and topcoats over the weld area.
No. This is a specialized weld-through primer. It should only be used where panels overlap and are to be welded.
Yes, it is formulated to be compatible with TIG, MIG, and spot welding applications.
While it is touch-dry quickly, it is best to allow the primer to cure for at least 15-30 minutes to ensure all solvents have evaporated.
The product is designed primarily for steel surfaces. Consult the technical data sheet for specific substrate compatibility.
You may have applied the primer too heavily. Ensure you are using a thin, even layer and allow sufficient drying time before welding.
The surface was likely not cleaned or sanded properly. Ensure all contaminants are removed and the metal is scuffed to provide a 'tooth' for the primer.
Remove the nozzle and soak it in a solvent like acetone or thinners, or replace it with a new aerosol nozzle.
To ensure optimal performance, start by cleaning the metal surface with a degreaser to remove all oils, silicone, and dirt. Sand the area with 80-180 grit abrasive to ensure mechanical adhesion. Shake the can vigorously for at least two minutes before use. Apply in thin, even passes from a distance of approximately 15-20cm. Allow the primer to dry completely before attempting any welding. To prevent the nozzle from clogging, turn the can upside down and spray for a few seconds after each use to clear the internal valve.
