hard as nails is, sally hansens clear fingernail polish, found at walmart and kmart etc, they also have alot of other colors and the stuff is tuff and works well for the small quantity jig man. the pro tec powder is sold by many outfits, ( barlows etc. ) and another small business that I can't rememberrthe name of but he had all the colors and cheap too. you have to heat the jig head and then swish it thru the powder, it liquifies and then cools hard just that fast.