Reliable Protection for Cables Starts with the Right Powder

In the cable industry, moisture intrusion is more than just a nuisance—it can lead to system failure, costly maintenance, and service disruption, especially in critical applications like underground, submarine, or telecom installations.

To address this, super absorbent polymers (SAP) have become the preferred solution for cable water blocking. Engineered to react immediately upon water contact, SAP powder rapidly swells to form a protective gel, sealing off any breach and stopping water from spreading inside the cable structure.

Why Use SAP for Cable Protection?

When a cable sheath is compromised, timing is everything. Our SAP-based water blocking powder activates within seconds, expanding to block moisture and preserve conductivity, performance, and cable lifespan.

It’s a solution already proven across various cable types:

High-voltage power cables

Fiber optic and telecommunication lines

Submarine and underground cables

Mining and heavy industrial cables

Versatile Applications

✅ Direct Powder Filling:

Loose powder can be filled directly into cables during production for internal water sealing.

✅ Cable Filling Compounds (Jelly/ Gel):

SAP integrates into cable gels to enhance water resistance and structural integrity. Perfect for fiber optic cores and jacket areas.

✅ Water-Swellable Tapes:

SAP-loaded tapes are used as inner layers. On contact with water, they expand instantly to isolate moisture and block spread along the cable.

Key Features

Rapid Reaction: Swells in contact with water within seconds

Non-toxic and stable: Made from sodium polyacrylate, safe and effective

Reliable under harsh conditions: Suitable for high humidity, underground, and marine settings

Low degradation: Proven long-term performance under natural light exposure

FAQs

Q1: What is water blocking powder made of?

It’s a type of sodium polyacrylate-based super absorbent polymer. It absorbs and locks in water, forming a gel that blocks further intrusion.

Q2: What are water swellable tapes?

These are SAP-infused layers within cables that expand when exposed to moisture, preventing water migration.

Q3: Is SAP safe?

Yes, it's non-toxic and environmentally safe when used correctly. Store it in a cool, dry place to maintain its effectiveness.