Hot Surface Marker Actuation Type Not Applicable Casing Material No Casing Dry Time 12 hr Glow-in-the-Dark Yes Grade Scanner Compatibility Not Applicable Hardness Firm Indoor/Outdoor Usage Indoor/Outdoor Marker Size Group Standard Marking Tip Shape Hex Maximum Application Temperature 400 Degrees F Minimum Application Temperature 1 600 Degrees F Overall Length 4 5/8 in Pigment Color White Pigment Material Paint Pigment Maximum Surface Temperature 1 600 Degrees F