Designed for marking red-hot surfaces from 400F to 1600F (204C to 871C), the HT Paintstik hot surface solid paint marker withstands the rigors of steel production. Available in 6 bold colors, the durable weather- and fade-resistant marks will not run, char, flow, discolor, peel or crack. Ideal for marking billets, coils, bars, forgings and plates. FEATURES & BENEFITS: Red-hot surface marking crayon writes on billets, coils, bars, slabs, ingots and other hot metal surfaces. Lasts longer, up to 6X the writing life of competitive hot chalk. Durable marks will not run, char, flow, discolor, peel or crack. Fast-drying marks are not damaged during handling or when immersed in cold water baths. Real paint for long-lasting, highly visible marks. Available in two sizes: standard 3/8" (9.5 mm) and king 3/4" (19 mm). Marking range: 400F to 1600F (204C to 871C). Made in U.S.A. INDUSTRY USES: Forge and casting foundries. Steel mills and warehouses. Aluminum mills. Smelting mills. Stamping works a