One-Shot Lettering Enamel 1 Shot Lettering Enamels Are Oil Based, High Gloss Enamels For Interior And Exterior Use On Metals, Wood And Glass; And Have Been The Benchmark In Lettering Enamels For Over 50 Years. Excellent Flow Characteristics, Single Stroke Coverage And Vibrant Durability Are Just A Few Of The Reasons 1 Shot Lettering Enamels Remain The Favorite Of Pinstripers And Sign Painters Alike. With Their Infinite Color Blendabilty And A Full Line Of Reducers And Hardeners, It'S No Wonder 1 Shot Lettering Enamels Are Used By More Sign And Graphics Professionals, Than Any Other Brand.