It provides a fast and sample way to seal telephone cable splices in nonpressurized cable.

Sleeve is made of a crosslink heat-shrinkable,thermally-stabilized polyolefin, which is coated with a hot-melt adhesive, it will bond at the temperatures attained during the shrinking operation. The outside surface of the sleeve is covered with a temperatures- indicating  paint, which will change color when heated and allows a uniform shrinking of the product. The RSB has a aluminum canister providing mechanical protection of joint. Flexible crowns at the end provide a smooth transition from the joint to the cable.

Sleevs designed for Non-pressurized cable networks-with metal canister or cardboard liner as protection for increased mechanical strength. it provides a fast and sample way to seal telephone cable splices in nonpressurized cable