Viper Wet Rag is a reusable heat-blocking putty for protecting heat-sensitive components from damage during soldering, brazing, or welding. Viper Wet Rag is made from the same material used in the heat shield of the space shuttle. Simply mold the putty around the piping or component, remove when cool, and replace the putty back into the jar. The product can be reused up to 40 times. Viper Wet Rag is completely nontoxic and heat-resistant to 2,500°F.