Oatea|#Oatey 53017 1.7 Oz Paste Flux,

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

This Oatey 1.7 oz. No. 5 lead-free solder paste flux is a smooth, non-runny paste that applies easily and spreads evenly. Paste flux cleans and fluxes copper piping to provide uniform solder flow. The self-cleaning formula is good for soft solder applications of copper tube and fittings in Plumbing, HVAC, fire sprinkler and other systems. This material is safe for potable water applications.
Brand: Oatey, Model: 53017, Color: Green, Size: 1.7 oz