Maisheng® Super Absorbent Polymers (SAP) provide reliable protection for cables against water ingress. When cable sheaths are damaged, these high-performance SAP quickly absorb water, expand, and seal gaps effectively, significantly reducing the risk of electrical failures and. Several types of water-blocking materials are used in fiber optic cables to prevent water from penetrating into the fiber optic cables and causing damage. Some common water-blocking materials include: Absorbent Swellable Tape: Absorbent Swellable Tape is typically made from a non-woven material. Water ingress is one of the leading causes of fiber attenuation and signal failure in optical cables. When water comes into contact with glass fibers, it can initiate micro-cracks under mechanical stress. In low-temperature environments, frozen water expands and exerts pressure on the fibers. The “dry” cable design compares favorably with a “wet” design that uses a flooding compound in the voids within the cable core and/or a thixotropic gel within the buffer tube to achieve comparable water blocking performance. By filling the voids inside optical cables with a super absorbent water. HEC-Holland presents a revolutionary waterblocking powder, a super absorbent polymer engineered to maintain cable dryness during operation and in the event of water infiltration, effectively forming a sturdy gel barrier within the voids.
