TEMPIL 28320 TEMPILSTIK is a calibration‑free, wax-based temperature indicator specifically developed to melt quickly at 160 °C (320 °F) for clean, visual confirmation. Ideal for welding preheat, interpass checks, post-weld heat treatment, and surface thermal spot‑checks. Each stick is permanently laser‑etched with its part number, melt‑point rating, and lot code to support audit-grade traceability. Fully compliant with AWS D1.1, ASME Code Sec. I/III/VIII, and ANSI/ASME B31.1/B31.3 standards. Proudly made in the USA and widely used in industrial fabrication, shipbuilding, oil & gas, and rail sectors. 

  • Accurate melt temperature at 160 °C / 320 °F, rated with ±1 % °F (±3 % °C) precision, calibration‑free and NIST-traceable. 

  • Instant visual signal: Wax disappears cleanly at threshold—no instruments required. 

  • Audit-ready traceability: Laser-etched part number “28320,” melt rating, and lot code along the full length of the stick. 

  • Industry-standard compliance: Meets AWS D1.1, ASME Sec. I/III/VIII, ANSI/ASME B31.1 & B31.3 thermal control codes. 

  • Portable field-ready format: ~0.625″ diameter wax stick (~5.5″ length) housed in a slip-resistant metal barrel—ideal for rugged environments. 

  • Material versatility: Effective for use on steel, stainless steel, aluminum, ceramic, glass, and plastic surfaces.