Nokorode® Regular Paste Flux is a lead-free, all-purpose, soft soldering paste flux ideal for use with 95/5 and other common solders. Nokorode® special oil base protects the solder joint against corrosive attack. It cleans and fluxes all at one time. When heated, it reduces surface tension and allows the solder to flow easily and uniformly into the joint. Nokorode® Regular Paste Flux works to deliver a strong, leak-free joint. It's non-aggressive formula is ideal when used on copper and brass fittings.