Oatey #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. #5 paste flux provides great wetting properties for better solder flow and can be used with most soft solders. #5 paste flux complies with CA and VT lead content regulations.
Effective on all metals except aluminum and stainless steel
Effective on all metals except aluminum and stainless steel
Compatible with all common plumbing solder alloys
Will not turn copper piping green
Good for large diameter copper piping
100% lead-free paste flux cleans and fluxes copper piping