Insulating and sealing performance of Raychem materials has been demonstrated for over 40 years. These proven materials form the basis for Raychem inline joints for cables up to 1.1 kV. While fully comparable in ease and speed of installation to other modern methods, Raychem joints eliminates delay due to mixing, pouring and topping-up, as they require no jointing compound. This feature cuts out curing time and enables joints to be buried immediately. The heat shrinkable joint components be stored in varying climatic conditions without risk of long-term deterioration.