how to clean relay board?
 

Well I dug out of my pile of parts 2 engine relay boards. The epoxy on the bottom is in good shape on both. But both are pretty dirty / grimy from years of being in various boxes and I suppose in cars. So how do you go about cleaning these? How do you clean the female sockets for the relays? Is alcohol a good cleaner to use? Once everything is clean can dielectric grease be applied to the relay pins,harness contacts and the fuse holders?

I always found WD40 to be the best way to clean them, that and a couple of tooth brushes should get you on the right track