lauer lcw parkerizing solutions manganesephosphate is ideal for firearms that ... oil or spray-on/bake-on finishes zinc phosphate is especially suited as an undercoating ... coat with a finish such as lcw duracoat manganesephosphate charcoal to black product ... .59 1 gallon liquid 245-936 30.99 zinc phosphate gray product price 16 oz liquid 165- ... which have been treated with zinc or manganesephosphates it can even be applied to ...