Oatey 1.7-fl oz Tinning Soldering Flux

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 to provide uniform solder flow. Added tinning powder helps to pre-tin piping. Petroleum base provides cleaning effectiveness. Material is safe for use in potable water applications.