A cable enclosure sealing arrangement has a seal body with one or more cavities extending the full length of the sealing member and a slit extending from each cavity to the exterior of the sealing body such that the edges of each slit may be pulled apart to expose the cavity and permit insertion of a cable. The cavity may include a profiled interior surface having inclined or curved surface portions projecting into the cavity the inclination or curvature of the profiled surface portions being in opposite senses at opposite end zone sections of the cavity. The arrangement has a compression system for compressing the sealing member to effect sealing along the longitudinal slit. A tie rod extending through a central portion of the body and connecting two end plates can be used for this purpose.