Oatey 4 Oz. Lead-free Liquid Soldering Flux Ammonium Chloride 1 Pc.

Oatey No. 11 Liquid Flux is formulated with a strong cleaning agent to remove corrosion quickly and effectively from pipe surfaces in HVAC and electrical work. Fluxing is a critical step in the soldering process. No. 11 Liquid Flux is lead-free and an ideal flux for use when soldering. Complies with CA and VT lead content regulations. Ensures fast and effective soldering operation.No need to clean oxidized copper.Water soluble.Can be used for HVAC applications.