The primary function of optical cable filling is to maintain the luster of optical cables and to enhance the gloss of optical cable products. At the same time, the filling rope can also help to improve the anti-lachen, anti-swing effect of the cable. optical cable filling material does not contain harmful substances such as asbestos and halogen bulb. It conforms to the ROHS test standard and has a flame retardant grade ≥40%. The melting point is 260 ° C and the optical cable filling material does not absorb moisture.