The core value of the TST SEAL MCT perforated sealing system in the maritime industry stems from its deep alignment with international maritime safety standards and its systematic solution to engineering pain points. As a high-density, high-risk mobile industrial platform, the sealing of cables and pipes penetrating barriers on ships is not only a technical issue but also a core element of the entire ship’s safety system.

1. 1. Rigid Requirements of International Maritime Standards

According to the International Convention for the Safety of Life at Sea (SOLAS) and the regulations of the China Classification Society (CCS), the fire integrity of ship bulkheads/decks must extend through the cable and pipe penetration points, and the fire resistance rating of the sealing device must be completely consistent with that of the adjacent compartment structure. The TST SEAL system is certified by the five major global classification societies, including the Russian Bureau of Shipping (RS) and the China Classification Society (CCS), meeting IMO FTP Code A-0 to A-60 fire resistance standards to effectively block the spread of fire along cables.

Meanwhile, ships face the risk of high-pressure water vapor infiltration under extreme sea conditions such as typhoons and giant waves. TST SEAL’s watertight and airtight performance can withstand a 48-hour pressure test at a depth of 10 meters, ensuring the airtightness and watertightness of critical areas such as the engine room and cargo hold, preventing electrical short circuits or equipment failure caused by seawater backflow.

1. 1. Engineering Advantages Surpassing Traditional Processes

TST SEAL MCT

1. 1. Space Efficiency Revolution

Traditional cable glands require individual openings for installation in dense wiring scenarios, occupying a significant amount of deck space. The TST SEAL MCT through-hole sealing system, through its “single-hole, multi-cable” design, allows a standard through-hole unit to accommodate more than 30 cables or pipes of different diameters, increasing space utilization by over 70%. For example, in the ship’s engine room, the compact layout reduces pipe bends, leaving critical operating space for maintenance access.

1. 2. Dynamic Environmental Adaptability

Ship vibration and shock loads far exceed those of land-based facilities. The TST SEAL MCT perforated sealing system uses a combination of a 304/316 stainless steel frame and EPDM rubber modules. Through elastic deformation, it absorbs mechanical stress, and in actual tests, it can attenuate more than 80% of vibration energy, preventing seal failure or bulkhead cracking caused by long-term vibration. In special vessels such as FPSOs (Floating Production Storage and Offloading) ships, this feature significantly extends equipment life.

1. 3. Life Cycle Cost Control

The TST SEAL MCT perforated sealing system uses “strippable core layer” technology. During installation, only the inner layer of the module needs to be stripped to the diameter of the matching cable, eliminating the need for customized production. Its “non-destructive disassembly and assembly” feature allows for quick opening of the sealing frame to add cables when the ship is upgraded or its capacity increased, avoiding the downtime losses caused by cutting the deck and redoing the fireproof coating required by traditional solutions. A case study of a cruise company shows that this design shortened the LNG-powered conversion period by 40%.

III. Protection System for Complex Risks

TST SEAL MCT

Modern ships have increasingly stringent electromagnetic compatibility (EMC) requirements. The electromagnetic shielding module of the TST SEAL MCT permeable sealing system can attenuate electromagnetic interference by more than 30dB, preventing radar and communication equipment from being affected by EMP (electromagnetic pulse), and especially ensuring the stability of the electronic warfare systems of warships.

In explosion-proof scenarios, the TST SEAL MCT permeable sealing system is ATEX/IECEx certified. When flammable gases infiltrate the compartment, its explosion-proof structure can interrupt the spark propagation chain, avoiding the risk of chain explosions similar to the “Deepwater Horizon” incident. A test report from Det Norske Veritas (DNV) shows that the system maintains structural integrity at a critical pressure of 2.5MPa during methane explosion tests.

1. 1. Comprehensive Application Scenarios

From the silent sealing of cruise ship cabins to the explosion-proof areas of drilling platforms, the TST SEAL MCT permeable sealing system achieves precise protection through modular combinations.

Cruise ship living quarters: Food-grade EPDM material seals drinking water pipes, eliminating the risk of heavy metal leaching; Ship engine room: Fireproof + EMC composite modules protect propulsion system control cables; Polar research vessel: -60℃ cold-resistant formula prevents rubber embrittlement and leakage; LNG carrier: Airtight seals prevent methane permeation into living quarters.

The TST SEAL MCT perforation sealing system upgrades “passive sealing” to an “active protection system.” Its value lies not only in meeting regulatory requirements such as SOLAS and FTP Code, but also in providing flexible safety boundaries for shipbuilding and maintenance through modular and intelligent design.