At sea, moisture is everywhere — and its effects on cargo quality, vessel integrity, and equipment reliability are severe. Condensation in cargo holds damages hygroscopic goods. Salt-laden humid air accelerates corrosion on structural components, machinery, and electrical systems. DST desiccant dehumidifiers provide reliable humidity control across the full range of maritime environments — from cargo holds and chemical tankers to shipyard surface treatment operations and vessel lay-up preservation.
As a vessel moves through changing climates, the temperature of the air inside cargo holds and enclosed spaces fluctuates. When warm, humid air cools — for example, as a ship moves from tropical to colder waters — its relative humidity rises sharply, often reaching saturation point. The resulting condensation, known as “cargo sweat” or “ship sweat”, drips onto stored goods, causing moisture damage that can make entire shipments unfit for sale.
For the vessel itself, the combination of salt and humidity creates one of the most corrosive environments on earth. Structural steelwork, pipe systems, machinery rooms, and electrical enclosures are all vulnerable. During lay-up or refurbishment periods, when vessels are inactive and not generating heat, the risk is at its highest.
DST dehumidifiers remove moisture from the air inside holds and enclosed spaces continuously, maintaining the stable low-humidity conditions that protect both cargo and vessel — from loading port to destination.
From chemical tankers and bulk carriers to naval vessels and shipyard surface treatment — DST desiccant systems protect vessels, cargo, and equipment in some of the world’s most demanding humidity environments. Our mobile and fixed units are designed for reliable, low-maintenance operation at sea and in port.
DST supplied chemical tanker cargo hold dehumidification for Stolt Nielsen — one of the world’s leading chemical tanker operators — protecting holds during transit and accelerating drying between cargo changes.
Multiple DST cargo hold installations for Hoegh across paper cargo and dry bulk carriers, protecting hygroscopic goods during global transit across changing climate zones.
DST supplied marine on-board dry storage dehumidification for Wilhelmsen across facilities in Singapore and Malaysia, protecting stored components and equipment in maritime storage environments.
DST has been supplying dehumidification solutions to the shipping and maritime industry since 1992 — across cargo holds, chemical tankers, naval vessels, shipyards, and offshore platforms in Norway, the UK, France, Italy, Singapore, Japan, and beyond. All systems are configured for the specific cargo type, vessel, or installation environment.
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