Water Blocking Tape / Water Swellable Tape | SAP Longitudinal Water Blocking for Cables

Water Blocking Tape, also known as Water Swellable Tape, is a high-performance non-woven tape impregnated with superabsorbent polymers (SAP). It is specifically engineered to prevent longitudinal water penetration into cable cores by rapidly absorbing water and forming a dense gel barrier that seals gaps and channels. This advanced material delivers reliable moisture protection for optical fiber cables, data cables, telecom cables, control cables, and power cables, ensuring long-term electrical and optical integrity even in wet or flooded environments.