Oatey® No. 5 Paste Flux is a petrolatum-based flux designed to provide superior wetting properties for better solder flow. It can be used with most soft solders.
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 to provide uniform solder flow
Petroleum base provides cleaning effectiveness
NSF standard 14 (performance) and standard 61 (health effects) certified
Material is safe for use in potable water applications
Includes brush for easy flux application