There is another factor which you should consider. This is the 
temperature profile during the cleaning process. Many components which 
are considered as hermetic may have seals which do not function well 
with variations of temperature. For example, a trimmer potentiometer may 
have an O-ring which renders it watertight under normal circumstances. 
However, if the temperature drops while the component is wet, the 
contraction of the air inside the box may be sufficient to suck in some 
water past the O-ring, to the detriment of the contact between the 
slider and the resistive element. My advice is always to start cool and 
work upwards in temperature, so that the pressure inside any components 
containing air is always increasing.

Brian

On 27/10/2010 20:41, Yannick Brisson wrote:
>   Hi,
>
> 	I need to find for all (almost all) parts in our system if they
> can go in the washer?  I look over a couples of part but I don't see any
> info in the spec sheet, Do ou guys find something on that topics? Or do
> you ask the manufacturer each time you have a new part ?
>
> 	
>
> Thank You
>
> Yannick
>
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