The flame-retardant fiber filling gel for the optical cable has the main characteristics of high thixotropy index, high/low temperature resistance and flame retardance, and can ensure that the fiber in a loose tube and a cable core in the cable are always at the most free. The flame-retardant fiber filling gel for the optical cable has the main characteristics of high thixotropy index, high/low temperature resistance and flame retardance, and can ensure that the fiber in a loose tube and a cable core in the cable are always at the most free. The invention relates to flame-retardant fiber filling gel for an optical cable. The filling gel comprises base oil, oil separation inhibitor, antioxidant, organic thickening agent, inorganic thickening agent, organic flame retardant and inorganic flame retardant. The invention also provides a. onal during fire. In addition, also with water spray and. Avoid cable fires and stop them safely! KBS ® offers various solutions to effectively protect cable penetrations from the passage of flames and smoke. In most cases, the task is to seal off complex cable systems and cables on support constructions. The water-swellable yarn eliminates the need for gel-filling. , durability, flexibility, recyclability and ease of processing. Common cable applications include building and � Aluminum hydr ding & Construction sector, ATH and MDH are preferred solutions. The criteria f. PP waterproof filler string used for flame-retardant, fire-resistant LSOH/LSZH flame-retardant, fire (oxygen)separated, LSLH flame-retardant cable.