Tempil 400F/204C Tempilstick Temperature Indicator (TEMTS0400)

The Tempil 400°F/204°C Tempilstick provides precise temperature measurement for critical welding and heat treatment applications. This temperature-indicating crayon melts at exactly 400°F, allowing welders and fabricators to verify proper preheat and interpass temperatures. Simply mark the surface - when the mark liquefies, you've reached the target temperature. Essential for maintaining AWS welding procedure specifications and ensuring quality welds on structural steel, pressure vessels, and heavy fabrication projects.