The all-dry fiber optic cable is not filled with oil paste,but uses dry super absorbent resin(SAP),SAP has better drying and moisture-proof ability than traditional oil paste,providing better water blocking effect for optical fiber and vertical water blocking.Due to the fiber and cable core between there is no ointment,fiber connection without wiping ointment,cleaning agent and wiping paper,more environmental protection also reduces the cost of cable connection,while greatly improving the efficiency of fiber welding.