Mantry, let us know how this works out for you. I'm using a "paint" like this which I bought on ebay and it's been a real pain as it seems to crack and flake off and wacky problems start happening (button stops again or stays latched on all the time due to short created). I think that the perfect paint for this application is slightly flexible (I've seen stuff like this before). Perhaps the Caikote 44 is the right one.