Markal 86805 Thermomelt Heat Stik Temperature Indicator Marker 500 F 260 C 4-1/2 Inch

Thermomelt Heat Stik from Markal at 175 F (79 C), 4-1/2 inch. Verifies preheat temperature on weld joints in carbon steel and structural fabrication.

Thermomelt Heat Stik from Markal at 600 F (316 C), 4-1/2 inch. Marks preheat zones on chrome-moly and high-alloy pipe welds requiring elevated temperatures.

Thermomelt Heat Stik temperature indicator from Markal at 125 F (52 C), 4-1/2 inch stick. Mark melts when rated temperature is reached for welding preheat and process monitoring.

Thermomelt Heat Stik from Markal at 250 F (121 C), 4-1/2 inch stick. Confirms preheat is reached on weld joints in pipe, structural, and pressure vessel fabrication.

Thermomelt Heat Stik from Markal at 450 F (232 C), 4-1/2 inch. Marks weld preheat zones in chrome-moly and alloy steel pipe fabrication.