Is there anybody out there with an easy solution to painting 100/150/200 foot depth markings on my galvanized anchor chain? I used metal spray paint out of a can last year and the paint didn't last a season. I have gotten outrageously different answers from the two marine stores and three local paint stores with whom I have asked the question. One person even suggested I use a blow torch to heat up the chain prior to painting. Unfortunately I sold my blow torch at my last garage sale. Can anybody help? Thanks in advance.