When I've bought parts from a yard sometimes they hastily dab their initials or a date or whatever on the part with some sort of yellow paint. (maybe to identify a part they sold for warranty but who know...) I haven't been to one or bought anything in a long time. But I've found this paint to be very easy to see and darn tough to get off after the fact. There's been the occasional project that I could use some on too... Anyobdy know what they use and where it's available through?
thanks