Mipa Weld-Primer Spray (400ml)

Mipa Weld-Primer is a specialised, thin layer primer designed to be applied to metal surfaces before welding processes such as MIG, TIG, or spot welding. Its primary function is to provide exceptional corrosion protection in areas that will be joined or covered during the welding process, where applying a standard primer later would be impossible. It ensures that the metal remains protected against rust while maintaining the electrical conductivity required for a clean, strong weld.

The choice depends on the specific requirements of your project. The zinc variant contains active pigments that offer superior corrosion protection for iron and steel, making it the preferred choice for structural repairs where long term rust prevention is the main priority. The copper variant is formulated to provide higher electrical conductivity, which can be advantageous in specific welding applications where optimal current flow across the joint is necessary.

Yes, this is critical for a successful weld. You should apply this primer in light, even coats to achieve a dry film thickness of 10 to 20 microns. It is vital not to exceed a dry film thickness of 20 microns. If the layer is too thick, it may interfere with the welding process and result in a poor weld quality. We recommend applying 1 or 2 light spray coats, allowing 3 to 5 minutes of flash off time between each application.