We have made a few designs for use in marine applications. The materials we use are impervious to saltwater and debris. The damping grease used is sealed internally and won’t lose functionality with immersion in water or in splashing situations. Typical applications could be port doors, hatches, cooler lids, pivoting panels, storage doors to name a few. Our Rotary Viscous Dampers are maintenance free, low profile and last for 30,000+ cycles. Friction hinges also can be made in the same materials as the Rotary Viscous Dampers, ensuring high performance. Prototypes and samples are available upon request. We can use 3D printing to make a functional prototype. So call us at 203-406-7900 or visit our website at www.mmtech.us, let us put our engineering experience to use for you.