Aspects and techniques of the present disclosure relate to an enclosure arrangement that provides a seal useful for sealing optical fiber cables. The enclosure arrangement can include a housing with two shell members that fit together to define a cable passage. The two shell members can include circumferential sealing ribs and longitudinal sealing ribs that each has a rounded profile. A sealant material can be used to wrap the optical fiber cable. When the housing is compressed into contact with the sealant material, the circumferential and longitudinal sealing ribs can apply a uniform, controlled pressure about the optical fiber cable without puncturing or damaging the sealant material.