Corrosion-Resistant Marine Tubing Assemblies

Saltwater, pressure changes, and vibration place high demands on fluid transfer components used in marine applications. FormFab provides marine tubing production services for manufacturers building watercraft and related marine systems. We specialize in small-diameter tubing assemblies made from materials designed to withstand corrosive environments and high-performance requirements.

Our team supports low- to medium-volume tubing programs for fluid, fuel, and coolant transfer systems, offering reliable tube bending and end forming backed by decades of fabrication experience. With in-house tooling, CNC equipment, and certified processes, we ensure tight tolerances, clean bends, and repeatable results.

FormFab’s strength lies in its ability to shape complex tubing profiles using precise, efficient methods tailored to your production goals. Our marine tubing services cover the full lifecycle, from initial prototype to repeat production runs.

We offer:

• Marine tube bending using CNC rotary and mandrel bending for aluminum, copper-nickel, stainless steel, and more
• Marine tubing end forming, including flaring, expanding, reducing, and custom end shapes
• Welding and brazing for low-pressure subassemblies
• Leak testing to verify seal integrity and assembly performance
• Nylon and metal tubing options, depending on routing, pressure, and environmental requirements

Custom-built fixtures support all forming operations to maintain consistency and part quality.

Marine tubing must meet strict durability and corrosion resistance standards. FormFab sources and forms high-quality materials suited for extended exposure to saltwater, vibration, and thermal cycling:

• Copper-nickel tubing for high corrosion resistance and seawater compatibility
• Aluminum and stainless steel for weight savings and strength in marine environments
• Copper and steel where appropriate for protected, low-exposure assemblies
• Nylon tubing for certain low-pressure routing needs

We work closely with OEMs to recommend the right material and forming strategy for each application, keeping production timelines and performance needs in focus.

FormFab supports custom tubing assemblies for select marine fluid transfer systems. Applications we commonly support include:

• Fuel lines and coolant lines for inboard and outboard engines
• Intake or transfer tubes used in propulsion or onboard systems
• Low-pressure tubing routes within confined or vibration-prone enclosures

Our focus remains on high-precision tubing for fluid routing and transfer components that need to perform in tough conditions.