QUOTE(Mark @ Jul 26 2006, 12:41 PM)
yep, potting compound is the resin that you set the circuit in to protect it. 2-part epoxy (ie araldite) is sometimes used, but as roger says, it gets hot when curing, which isn't a good idea for soldered things.
Mark
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Its also a good idea to coat the electronics with a flexible paint (polyurethane or glyptol) before potting in epoxy.
There can be problems with broken joints due to different heat expansion rates otherwise.
Simon.