Johnson's C-71-2 Core Baking Flux is proven reliable for oven baking of copper or finds to solder coated tubes in radiators and heat exchanger applications. The improved wetting actions on C-71-2 offers increased wetability yet does not remain behind to cause discoloration of the core. This flux vaporizes during the heating cycle leaving a good clean surface so radiators are ready for header dip soldering.
C-71-2 Flux Concentrate should be diluted with eight (8) parts clean water to one part flux. Too high concentration of this flux can reduce solder flow, as can too low a concentration. Make any changes in dilution of the flux and water cautiously from the recommended mix.
View our Technical Bulletin on this product.
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