742 Soldering Flux
Kester 742 Inorganic Acid Flux is a solution of inorganic salts and other additives designed for general tinning applications. Rapid soldering can be accomplished in most metals with this concentrated flux. 742 is particularly suitable for difficult-to-solder metal surfaces: copper, nickel, nickel-iron, iron-alloy and tin plate surfaces. 742 possesses high activity, stability and heat resistance. The inorganic nature of the activator system provides good fluxing ability over a wide soldering temperature range.
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