Rectorseal 8 oz. Nokorode Regular Paste Flux with Brush Cap Lid. It is a lead-free flux that will not freeze or decompose. With no odor, it is recommended for use on all solder alloys including 95/5 and all lead-free solders. Meets Specification O-F-506, Type 1A and A-A-51145, MIL-F-4995-2. Certified to NSF/ANSI Standard 61, Annex G.