We are also manufacturers and suppliers of compound rubber roll in India. Compound rubber roll is widely used by submersible pump manufactures, for giving a water proof and shock proof joint in the submersible pumps.
Cushion gum has making a cable joint and that joint covered by perfect cushion gum ensure you from water or dust to go inside the joint, so in submersible and industrial cable joint there will be no short-circuit and it will save the pump. The joint inside the water should be proper as it has to remain inside the water for years.