TEMPIL 28343 TEMPILSTIK is a calibration‑free, wax-based indicator stick precisely designed to melt at 350 °C (662 °F). It delivers instant visual melt confirmation—no tools or electronic sensors required—making it ideal for welding preheat, interpass verification, and post-weld heat treatments. Laser-marked with part number, melt temperature, and lot code for full traceability, and compliant with AWS D1.1, ASME Sec I/III/VIII, and ANSI/ASME B31.1/B31.3. Trusted in shipbuilding, oil & gas, metal fabrication, railroad, and industrial maintenance environments. Made in the USA.

  • Melts precisely at 350 °C / 662 °F with ±1 % °F (±3 % °C) accuracy for reliable thermal verification. 

  • Visual confirmation on contact: Wax vanishes cleanly at threshold—no calibration or instruments are necessary. 

  • Fully traceable & audit-ready: Stick is permanently imprinted with part number (28343), melt-point rating, and lot code. 

  • Standards-compliant: Meets AWS D1.1, ASME (Sec I/III/VIII), and ANSI/ASME B31.1/B31.3 preheat and heat-treat codes. 

  • Portable & durable format: Approximately 0.625" solid stick in slip-resistant metal holder for toolkits and field use. 

  • Broad surface use: Works reliably on steel, stainless steel, aluminum, ceramic, glass, plastic, and more. 

  • Trusted in heavy industry: Widely used in welding, fabrication, shipbuilding, oil & gas, and railroad applications.