The Impeder Jacket Casing is attached to the Impeders, are constructed of fibreglass and are intended to protect the ferrite from mechanical shocks. Impeder Jackets as well as impeder lines offer high electrical insulation and chemical resistance since they are coated with epoxy. One of the most essential things that affects the operating effectiveness of impeders is the design and positioning of the impeder jackets. The importance of impeders in the industrial welding process cannot be overstated.