Graphite absorbs moisture from weather. So there is a need for propane torch to dry out the inside of the mould thoroughly on both sides, therefore heating the mold to approximately 250 degrees Fahrenheit We recommend using one Flame torch for Every 100 Joint and than use the refmore...
Steel Metal Disk Steel discs are very important. The disc acts timing device to allow the Exothermic Weld Powder to heat to proper temperature. Steel Disk is designed to contain the exothermic reaction to the upper crucible of a mold until the reaction is complete and ready to Wemore...