Core Features

1. Rapid swelling upon contact with water for efficient longitudinal water blocking. When exposed to moisture, SAP absorbs water and swells quickly to form a gel layer, sealing the gaps of the cable core and preventing water from spreading longitudinally along the optical cable, so as to protect optical fibers from water erosion and water pressure damage. The gel features excellent water retention and is not prone to loss.

2. Lightweight, flexible and with good wrapping conformity. It has a soft texture and can tightly wrap loose tubes and cable cores, compatible with high-speed cable forming longitudinal wrapping equipment. It resists powder shedding and cracking under bending, delivering outstanding cable processing performance.

3. Good thermal stability. It can withstand short-term high temperatures during the sheath extrusion process. It will not fail prematurely under heat or decompose to contaminate internal cable components.

4. Excellent chemical compatibility. It is neutral and non-corrosive to optical fibers, PBT loose tubes, FRP, PP tapes, stainless steel armoring and other materials. It is resistant to microorganisms and mildew, maintaining long-term stability in humid underground environments.

Materials with other characteristics – please inquire separately.