Refrigeration Technologies Wetrag Heat Blocking Compound (12 oz.)

This reusable heat blocking putty keeps piping and sensitive components cooler than traditional wet rag application during brazing, soldering, or welding. It is made from the same materials found in the heat shield of the space shuttle. Simply apply, remove, and reuse. Features: Reusable - For up to 40 applications Conductive Heat - Blocks conductive heat transfer to protect sensitive parts Direct Heat - Blocks direct heat up to 2000°F Indicator Dye - Special dye fades over time to indicate when replacement is needed