Product Spotlight – Naptel
Tuesday, January 6th, 2026
Naptel Flood & Fill Products
From buried telecom lines to high-speed fiber optic networks, Soltex’s Naptel Cable Flood & Fill products are hard at work behind the scenes protecting the cables that keep the world connected.
Formulated with synthetic hydrocarbon fluids and wax/polymer blends, the Naptel product line is designed to block moisture, resist oxidation, and maintain dielectric properties in a variety of cable constructions. These compounds are essential in preventing water ingress, one of the biggest threats to long-term cable performance.
What makes Naptel products so versatile is how they’re used across multiple layers of cable construction. All Naptel grades are made for flooding cable cores, over-armor layers, and the spaces between insulation layers. Whether in underground, aerial, or high-humidity environments, these compounds help preserve both the physical and electrical integrity of the cable over time.
Why Naptel?
Naptel products offer many advantages:
· Moisture protection to block water migration within cable assemblies
· Oxidation resistance for long-term stability in varied conditions
· Dielectric performance for optimal signal transmission
· Compatibility with polymers used in modern cable construction and termination enclosures
· Application across different cable designs and specifications
Where It’s Used
Naptel Cable Flood & Fill materials are used in a wide range of telecom and fiber optic cables, including:
· Core flooding to protect the innermost layers
· Over-armor applications for an added barrier beneath protective metal layers
· Inter-layer fill between insulation and outer jackets
· Outdoor, buried, and high-performance data cable systems where long-term durability is critical
Soltex continues to support the evolving demands of global connectivity with reliable, high-performance materials. With Naptel, cable manufacturers and designers gain a trusted solution to keep infrastructure protected from the inside out.
