Oatey 30014 NO. 5 PASTE FLUX 8 OZ

Oatey fluxes and pastes, in formulas including water soluble and tinning, etch and remove foreign material such as dirt, surface oxidation and impurities from copper surfaces. Without flux, solder will not flow into the joint. Thus, filling the void between the pipe and fitting provides a watertight seal. Removes surface oxidation and provides superior wetting properties which allow better solder flow. For use with solid wire solder. Effective on all metals except aluminum, magnesium and stainless steel. Cleans and fluxes at the same time. 100% lead free.