Seaflex^®
Advanced submarine fiber closures for critical infrastructure.

It all started with a simple circle.

In 1958, we introduced our first circular enclosure, an idea that would shape decades of engineering and innovation. That same design philosophy continues beneath the surface with Seaflex®. Built for rapid deployment, long-term reliability, and extreme depths, Seaflex® brings flexibility and proven performance to the world’s most demanding marine environments.

Seaflex® is Tykoflex’s premium solution for submarine fiber optic cable jointing. Engineered for exceptional performance in harsh subsea conditions. Whether installed along coastlines, across fjords, or on the seabed in offshore environments, Seaflex® combines rugged durability with outstanding adaptability.

Its proven design ensures protection and continuity for fiber closures subjected to water pressure, salinity, shifting substrates, and mechanical stress. Easy to configure and install, Seaflex® helps reduce downtime, minimize maintenance costs, and secure long-term operational integrity. Trusted by infrastructure providers worldwide, Seaflex® sets a new standard in submarine cable joint technology.