TS175 - Tempil 175 F Temperature Indicating Crayon

Precise Industrial Temperature Monitoring

The Tempilstik 175°F (79°C) is the original temperature-indicating stick, an essential tool for industrial professionals requiring accurate, low-cost surface temperature measurement. For decades, Tempilstiks have been the industry standard for verifying heat treatment, preheating, and interpass temperatures in metalworking and fabrication. Unlike electronic thermometers that require calibration and batteries, the Tempilstik relies on the immutable laws of physics: the material melts at a precise, engineered temperature.

Designed for critical applications, this 175°F indicator offers an impressive accuracy of +/- 1% of its rated temperature. It is particularly valuable in environments where digital readouts might be difficult to see or where equipment durability is a concern. The stick is easy to apply; simply stroke the workpiece during heating, and once the surface reaches 175°F, the dry, opaque mark will instantly transform into a distinct liquid melt. This visual cue is unmistakable and immediate, ensuring that process parameters are met strictly and safely.

Quality assurance is built into every stick. Each Tempilstik is traceable by lot number and is formulated to be free of lead, sulfur, and halogens. This low-contaminant profile makes it safe for use on stainless steel, nickel alloys, and in nuclear applications where chemical purity is paramount. Whether used for annealing, stress relieving, or monitoring operating temperatures of bearings and motors, the Tempilstik 175°F provides the reliability that industrial operations demand.

Key Benefits for Industry

• Fail-Safe Accuracy: Relies on material phase change, accurate to within +/- 1%.
• Compliance Ready: Meets major industrial codes including ASME, ANSI, and AWS.
• Traceability: Lot numbered for quality control and auditing purposes.
• Versatility: Effective on a wide range of metals and surfaces, including polished and rough textures.