Ink Type: Specially formulated to mark surfaces that will be exposed to extreme high temperatures.
Tip Style: Medium bullet tip.
Ideal Uses: Marks should be made at room temperature. Almost any non porous surface can be marked. Marks will be visible even after heating.

Different color markers withstand different temperatures:
-Black: Up to 2000°F (1093°C)
-Blue: Up to 2000°F (1093°C)
-Green: Up to 1800°F (982°C)
-White: Up to 1550-1650°F (849-899°C)
-Yellow: Up to 800-900°F (426-482°C)