Hot Surface Marker Actuation Type Not Applicable Casing Material No Casing Dry Time 12 hr Glow-in-the-Dark No Grade Scanner Compatibility Not Applicable Hardness Firm Indoor/Outdoor Usage Indoor/Outdoor Marker Size Group Fine Marking Tip Shape Flat Maximum Application Temperature 900 Degrees F Minimum Application Temperature 150 Degrees F Overall Length 4 1/2 in Pigment Color White Pigment Material Paint Pigment Maximum Surface Temperature 900 Degrees F