TEMTS0400 - Tempil Tempilstik 400°F (204°C) Temperature Indicating Crayon

Reliable Heat Management for Professional Welders

Take the guesswork out of your heating processes with the Tempil Tempilstik 400°F (204°C). Designed for the harsh conditions of the welding shop and job site, this temperature-indicating crayon provides an immediate visual signal when your workpiece reaches the target temperature. Whether you are preheating thick plate steel, monitoring interpass temperatures on high-strength alloys, or performing post-weld heat treatment, the Tempilstik ensures you hit the mark every time.

Using the Tempilstik is incredibly straightforward. Simply stroke the workpiece during the heating process. Once the surface reaches 400°F (204°C), the mark left by the stick will instantly melt into a distinct liquid smear. Alternatively, you can mark the surface before heating; the mark will change appearance precisely when the rating is reached. This ease of use makes it an invaluable tool for preventing overheating or underheating, both of which can compromise the structural integrity of a weld.

Manufactured in the USA, Tempilstiks are known for their consistency and density. They last longer than cheap imitations and provide a clear line that adheres well to various metal surfaces, including steel, iron, aluminum, and stainless steel. The included aluminum holder ensures you can use the entire stick efficiently while keeping your gloves clean. Trust the original temperature indicator to keep your fabrication quality high and your rework costs low.

Common Applications

• Welding: Verifying preheat on medium-carbon steels and chrome-moly piping.
• Heat Treating: Monitoring annealing and stress-relieving cycles.
• Foundry: Checking mold and core temperatures.
• Maintenance: Detecting overheating bearings or motor casings.