On Wed, 3 Jul 2002, Matt Pobursky wrote:

>I thought about this solution too, but I would be worried about
>the silicone grease "migrating" over time due to the ultrasonic
>motion of the transducer itself.
>
>Also, I'm not sure what the insulation voltage of the GE silicone
>sealer is, but I've used it in 500-600V applications over
>extended lengths of time and never had problems with it breaking
>down. GE probably has the electrical characteristics on their web
>site somewhere -- I seem to recall very high electrical
>resistance spec's (very high Megohms, when cured) but I haven't
>checked it in recent memory.

The prob with ultrasound is it will heat unapproved materials until they
catch fire or release fumes. What's the input power rating on that cleaner
of yours ?

Peter

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