Oatey No. 5 Lead Free Paste Flux cleans and fluxes most commonly soldered metals including copper, brass, zinc, galvanized iron, lead and tin or copper-coated metals. Fluxing is a critical step in the soldering process. No. 5 Paste Flux provides superior wetting properties for better solder flow and can be used with most soft solders. No. 5 Paste Flux complies with CA & VT lead content regulations.
Oatey® Pipe Flux, 16 oz, 29 g/L VOC, 20000 to 40000 cP Viscosity, 3 to 4 pH, Paste/Solid, Composition: Petrolatum, Zinc Chloride, Water, Ammonium Chloride, Amber, 540 deg F Flash, 400 to 700 deg F, Applicable Materials: Copper, Brass, Zinc, Galvanized Iron and Tin or Copper-Coated Metal