Bob,

I would have to echo Brian's comments... I did some SIR testing on a slightly out of control spray fluxing process, in which I was investigating the effect of overspray and capillary action.... The results on the SMT side were truly frightening. I wouldn't recommend applying no-clean flux to the component side - maybe just find a slightly more active no-clean flux that gives the wetting you desire, or go back to cleaning of a more active flux full-stop, would be my advice if you need any kind of reliability on this assembly.

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