b'Heat Stik (150F to 900F) 66C to 482CDual-purpose paint crayon is ideal for use where temperatures vary rapidly from hot to coldFormulated for foundries and mills where extreme temperature change occursDurable marks will not run, char, flow, discolor, peel or crack, but can be removed at higher temperatures150F TO 9.5mm 12h 900F Case Quantity: 144 Surfaces:PART NO. DESCRIPTION82520 White 6 Hot Surface Markers'