👉 The cruise fluid, also known as marine antifouling system (MAS) fluid, is a specialized chemical mixture designed to prevent marine organisms like barnacles, algae, and mussels from attaching to ship hulls, propellers, and other submerged surfaces. This biofouling prevention is crucial as it reduces drag, increases fuel consumption, and can cause structural damage over time. The fluid works by releasing biocides that deter or kill these organisms, while also incorporating other additives to minimize environmental impact. Modern cruise fluids are formulated to be highly effective yet environmentally friendly, adhering to international regulations like the International Maritime Organization's (IMO) MARPOL Annex IV, which restricts the use of harmful substances to protect marine ecosystems.
