Rich wrote: > I don't know if that silicone stuff is hygroscopic. I have never looked into > it. My intuitive response if maybe it will have some undesirable effects. > If the stuff is hygroscopic, and your circuit cannot tolerate surface > leakage across the board, you might want to consider investing the > properties of the silicone based stuff. Usually fet analog devices with > HI-Z in and small offset currents like very dry clean surface. > Of course, it is always best to decide these things for yourself... but here in the colonies, silicone caulk is used to seal walls around bathtubs. The stuff absolutely stops water from getting into the walls from the mating of the bathtub and the wall. It is NOT hydroscopic (sp?). --Bob -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist