hi Mike

some years ago (in the 93 to be precice) i've evaluated a no-clean fluxer
(RF 32-DM, alphagrillo) with passable ionic contamination and resulting in a
excellent adhereance of the subsequent applied conformal coating (a PUR
based Peters-type) over 4 different solder resist types. 

This result was found for no-cleaned as well as cleaned with 4 different
solvents resp. saponifiers (at this evaluation we have compared 11 different
fluxers)

grüsse aus Zürich-Nord

Bernhard

> -----Ursprüngliche Nachricht-----
> Von:  Mike Lang [SMTP:[log in to unmask]]
> Gesendet am:  Donnerstag, 17. August 2000 21:40
> Betreff:      CONFORMAL COAT OVER NO CLEAN
> 
>  
> Gents,
>  
> I have a product which I wave solder with no clean flux.  I have a special
> one time application where it is being suggested that we conformal coat a
> series of PCB's.  The PCB's will be in a mounted in a NEMA type 4X
> enclosure which will be located outside.
>  
> I have only known conformal coating to be applied to PCBs which were
> cleaned, and which passed ionic contamination testing.
>  
> We do not clean nor do we have the ability to clean.  We do pass the
> standard litany of tests (known because we did extensive testing when
> cutting over to no clean).
>  
> What am I in for here?
>  
>  
>  
>  

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