OK, this isn't directly PJ related, but I first learned about potting compound here at LL, so presumably it's of interest to some of the electronics wizards and wannabes on here.

I need to ruggedize & weather-protect a simple circuit of LED's and resistors, so I mounted the LED's in a plastic project box and wired in the resistors, and now I want to fill that box with potting compound. Only problem is that the local electronics shop is out of PC until next week sometime. Surely there's some kind of epoxy that I can score from Home Depot that will suit my needs?

Thanks for any pointers or advice,