Paint Marker, Actuation Type Valve, Compatible Surfaces Concrete, Glass, Leather, Metal, Plastic, Rubber, Stone, Vinyl, Wood, Dry Time 25 to 35 sec, GE Nuclear and Aircraft Engine Specification Compliance Not Applicable, Marking Tip Shape Bullet, Maximum Application Temperature 350 Degrees F, Maximum Performance Temperature 350 Degrees F, MIL Spec STD-2041D Compliance Yes, Minimum Application Temperature 0 Degrees F, Minimum Performance Temperature 0 Degrees F, NSF Registered No