Nokorode® Aqua Flux™ is one of the very few paste fluxes available that meets ASTM B-813 standards requiring that fluxes be water washable and can be flushed from the piping system to prevent corrosion. For use with 95/5, 60/40, 50/50, 40/60 and other solders. Cream color. Certified to NSF/ANSI 61 Annex G in compliance with AB 1953 requirements, commonly referred to as the low lead law, making it suitable for use with the silicon family of metal alloy products.