Cleaning Solutions
Keeping your vessels clean is not just routine maintenance — it is a direct investment in operational reliability, crew safety, and environmental performance. At sea, every surface, system, and workspace faces tougher conditions than any land‑based operation. That’s why the cleaning products you choose matter.
Our Unitor™ cleaning solutions are developed specifically for maritime challenges — from stubborn fuel residues and salt deposits to the heavy‑duty demands of machinery and living areas. Developed in our own chemical facility and rigorously tested for safety, usability, and global compliance, each product is formulated to help your crew work smarter, faster, and more efficiently.
With a complete range that supports both day‑to‑day cleaning and essential maintenance tasks on board, you get more than chemicals and equipment — you get dependable performance backed by expert support and a worldwide supply network that delivers wherever your vessels operate.
Choose cleaning that enhances efficiency, protects your people, and keeps your vessel performing at its best.
Ever wondered what goes into making the Unitor™ chemicals your crew relies on every day? Follow us behind the scenes at our chemical factory, where every cleaning product begins its journey.
From raw material sourcing to precision blending, quality testing, and final product approval, this video takes you through the full production process. You’ll see how our experts ensure safety, consistency, and global compliance at every step — so you get cleaning solutions that perform reliably at sea, no matter the conditions.
Discover the craftsmanship, technology, and dedication that power the Unitor™ cleaning range — and see how we turn innovation into products that keep your vessels cleaner, safer, and more efficient.
Online Product Catalogue
EPD now available for select products

Wilhelmsen Ships Service is proud to introduce Environmental Product Declarations (EPDs) to support customers’ purchasing decisions and sustainability reporting. While our portfolio covers a wide range of maritime products & services, EPDs are currently available for select products where environmental impact can now be transparently measured and compared.
Did you know?

All of our Unitor™ chemicals are standardised
All chemicals are produced in a single location in Tønsberg, Norway. Manufactured to the very highest standards and designed to work within the toughest marine conditions, our standardised product range offers consistent, dependable documented performance, over and over again.
Our range covers the full spectrum of essential cleaning and maintenance tasks on board. But we don’t simply supply high quality products. In every case, our cleaning solutions are backed up by dedicated, single-point customer service, technical support and advice, and a worldwide logistics network.
Wilhelmsen insights
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Exploring Marine Product Standards: The Nordic Swan Ecolabel
Amidst the growing demand for transparency and authenticity in the product lifecycle, uncover the ecolabel's profound significance in ensuring environmental stewardship that empowers you to make conscientious and sustainable choices
Wilhelmsen insights |
Shirin Fanaian, Product Manager Chemicals – Cleaning -
Probiotic Treatment for Blackwater Systems
One of the most common reasons why a sewage treatment plant malfunctions is that the wrong chemicals are used. We have the right solution to give your vessel the complete probiotic protection.
Wilhelmsen insights |
Shirin Fanaian, Product Manager Chemicals – Cleaning -
The hidden costs of ineffective chemical cleaning in shipping
Discover the hidden costs of poor chemical cleaning in shipping, including increased maintenance, safety risks, and environmental violations. Learn best practices for chemical management to boost operational efficiency and compliance for your vessel.
Wilhelmsen insights |
Shirin Fanaian, Product Manager Chemicals – Cleaning -
Don't Forget the Filters!
In the midst of making big IMO 2020 decisions, it is quite easy to overlook fuel filters. Filter blockages can result in time consuming manual cleaning for crew and damage to filter parts.
Wilhelmsen insights |
Mark Oliver Wittburg, Product Marketing Manager Cleaning Solutions
Featured Offers
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Maritime-Grade Durability: Discover the Unitor™ Aeroflow AODD Pump
Fluid transfer onboard vessels is no small task. From transferring bilge sludge to cleaning cargo holds, your pump system needs to be rugged, reliable, and above all, safe. In high-risk marine environments where space is limited, vapors are present, and power sources are not always within reach, traditional pumping solutions can quickly become a liability. That’s why the new Unitor™ Aeroflow Double Diaphragm (AODD) pump range is designed with safety, versatility, and marine durability at its core.
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Why ultrasonic cleaning matters for your vessel
In the demanding marine environment, efficient maintenance is vital to keep vessels operational and compliant. Ultrasonic cleaners offer a cutting-edge solution for cleaning intricate ship components, ensuring optimal performance and extending equipment lifespan.
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Effective Cleaning Solutions for Engine Rooms and Decks
Maintaining a clean engine room and deck isn’t just about appearance, it’s about performance, safety, and cost savings.
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Raising standards of safety and efficiency through high pressure cleaning
High-pressure cleaning technology is redefining onboard maintenance by offering powerful performance, reduced chemical dependence, and measurable gains in safety, sustainability, and productivity.
Our Solutions
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Maintenance Cleaning Chemicals
UNITOR™ maintenance cleaning chemicals offer an extensive product portfolio to cover all your cleaning task amongst others decks, superstructure, stores, engine candles, tanks and bilges. All chemical products are made to ISO 9001 and ISO 14001 standards, with rigorous environmental management systems in place.
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Fluid Handling and Transfer Equipment
The UNITOR™ fluid and transfer equipment provide a complete range of air driven double diaphragm pumps, levers, barrel pumps, chemical applicators and grease pumps. All equipment is designed to be fully compatible with chemicals and fluids in order to sustain the heavy duty tasks on board.
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Gamazyme Cleaners
UNITOR™ Gamazyme cleaners is a highly efficient, safe and sustainable product range of biological detergent and treatment products. It contain naturally selected microorganisms that digest organic compounds converting them into water and CO2. They are specifically designed for safe and effective treatment of drain lines and grease traps, surface cleaning and odour control, septic and waste treatment onboard ships
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Galley & Accommodation Cleaning
The UNITOR™ galley and accommodation cleaning solutions provide an answer to all your cleaning needs and ensure an occupational healthy and safe environment on board. We supply detergents, defoamers, flocculants, bio-chemicals, tailor made mixing and dosing equipment that is optimized for these essential cleaning tasks. For crews personal care, we provide hand cleaners, sanitizer and skin protection products.
Need advice?
With offices in 75 countries supporting our non-stop operations in 2 200 port locations across the globe, you can be assured that we have the local knowledge and industry expertise to find the best solution to cater for your needs.
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