Industrial Marker, Actuation Type Valve, Compatible Surfaces Cardboard, Glass, Metal, Plastic, Rubber, Dry Time 20 to 30 sec, GE Nuclear and Aircraft Engine Specification Compliance Not Applicable, Housing Attachment Style Clip, Marking Tip Shape Bullet, Maximum Application Temperature 475 Degrees F, Maximum Performance Temperature 475 Degrees F, MIL Spec STD-2041D Compliance Yes, Minimum Application Temperature -20 Degrees F, Minimum Performance Temperature -20 Degrees F, NSF Registered Yes WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov -