Acid core solder is a flux-cored solder wire designed for joining metals in plumbing, HVAC, and general metalwork applications where a chemical flux accelerates wetting and flow. This 250g reel features 1.6mm diameter wire with an integrated acid flux core that cleans oxidation and promotes strong mechanical bonds without requiring separate flux application. Ideal for plumbers, HVAC technicians, and maintenance professionals working on copper and brass joints.
