Of course, external contaminants may be nutrients, but fungicidal 
conformal coatings would not prevent growth happening under those 
circumstances.

Brian

Brian Ellis wrote:
> Fungicides used to be added to phenol-formaldehyde lacquers, in the days 
> when all printed circuits were on cheap paper-based laminates (early 
> 1950s, because the paper coating treater was poor in uniformity before 
> stacking prior to pressing. However, that was also in the days when 
> anode voltages were typically 250 V. I remember that 20 or so years ago, 
> some conformal coatings contained fungostats and bacteriostats, but I 
> haven't a clue whether they are still available. Normally, I would not 
> expect modern materials to support mycelia penetration, so fungostats or 
> fungicides should not be necessary. Beware that many fungicides are 
> based on ionic metal salts!
> 
> Brian
> 
> Reuven Rokah wrote:
>>  
>> One of our potential customer is interesting with "Fungus treatment" for
>> assemblies and cables.
>>
>> Do you familiar with such process?
>>
>> Thanks
>>
>> Reuven
>>
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