ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/efd/resources/solder-selection-guide
. Two flux formulas can differ greatly in performance, despite having the same QQ-S-571E and J-STD-004 classifcations. Solder pastes with specific characteristics can be used to solve technical assembly problems that other forms of solder do not
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pretinning operations with activated fluxes. NOTE Examples of activated fluxes are J‐STD‐004 Type ROL1 and ROH1. b. The supplier shall completely remove activated fluxes immediately after use and before any further soldering operation. c. The
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