The cable industry faces the challenge that defective cables can result in costly repairs, especially
for complex installations. Superabsorbent Polymers (SAP) quickly and reliably protect the conductor/strand inside the cable in case of water ingress, if the cable sheath is damaged, and maintain the functionality of the cable. When cable sheaths are compromised, the SAPs quickly absorb water, expand, and seal the damage, preventing further penetration and reducing the risk of electrical failures.
Designed for high-voltage, communication, and fiber optic cables underground, we offers a wide range of water-swellable, water-absorbing and water-blocking polymers(SAP), offering reliable, cost-effective solutions to enhance cable durability and performance, meeting the growing demand for high-performance cables across industries.
SHC Cable Water Blocking Series
Water-blocking Powders Applications
Direct Incorporation Into Cables
Can be applied directly loose into the cable, especially in high-voltage cables, during the manufacturing process. The dosage depends on the cable structure and the desired water sealing.
Cable Filling Compounds(Gels Or Jelly)
As the CABLE FILLING COMPOUNDS, SAP works in cable gels or jelly, providing water absorption, water retention, structural stability, and enhanced waterproofing capabilities for cables. For optimum protection of the cable against water ingress, cable fillers are applied either between the core wrap and the outer protective jacket (Cable Flood) or directly onto the cable core (Cable Filler).
Water Blocking Tapes
Our SAP Polymers with a high swelling rate can be incorporated into water-blocking tapes, which are used to prevent water from spreading within the cable. Typically, this strip material is embedded inside the cable, and upon damage, it will quickly absorb water and expand, serving to seal the water source and prevent the spread of moisture.
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Different Cable Types
Submarine Cables
Underground Cables
Telecommunication Cables
Mining Cables
FAQ
Water-Blocking Powder is a kind of super absorbent polymer made of sodium polyacrylate. This kind of water blocking powder will be swelling to block the gap and preventing further water penetration.
Water-swellable tape, also known as water-blocking tape or water-swellable polymer tape, is a material used in the construction of cables to prevent water ingress.Using super absorbent polymers (SAP) gives these tapes premium performance during the critical first minute of response to water. It is typically applied in the cable’s core or around the cable’s components to provide a barrier against moisture and water penetration.
Our cable water blocking polymer is one kind of super absorbent polymer which is sodium polyacrylate. It has better water absorbent capacity and harmless.
Store in a cool, dry, well-ventilated, locked store room away from incompatible materials. Use ventilation to keep airborne concentrations below exposure limits.