Descaling Liquid™ 25 l

  • Product Group: 651
  • Product number: 571653

General description

Unitor™ Descaling Liquid™ is a hydrochloric acid based product containing active descaling accelerators, corrosion-inhibitors and wetting agents in a highly efficient solution.


• Hydrochloric Acid based product containing inhibitors against attack on ferrous metals

• Highly concentrated and suitable for multiple purposes

• Removes cargo sediments such as cement and lime wash, loose scale and rust from cargo hold bulkheads and coated metal surfaces

• Removes scale and rust from engine room condensers, evaporators, heat exchangers and similar equipment

• Removes water scale from boilers

• Approved by the Norwegian National Institute of Public Health for cleaning of evaporators


  • Reduces corrosion risk
  • Easy to rinse off
  • Fast and effective scale and rust remover

Unitor™ Descaling Liquid™ should not be used on aluminium, zinc, tin, stainless steel, titanium or any other galvanized surfaces for which a special grade cleaner is recommended by the manufacturer

Unitor™ has developed Cargo Hold Cleaning Kits and appropriately tested for use with Descaling liquid solution for efficient removal of cargo sediments such as cements, lime wash and similar products from hold bulkheads.

Unitor™ Handymax Cargo Hold Cleaning Kit, PN 778866

Unitor™ Panamax Cargo Hold Cleaning Kit, PN 778855

Unitor™ Cargo Hold Compact Kit, PN 778955

To avoid unnecessary corrosion of the cleaning kits, it is highly recommended to flush the equipment with fresh water regularly during cleaning, between each cargo hold and before storage.

Furthermore, Unitor™ has also developed a 210 litres capacity cleaning unit designed for use with chemical acid solutions for cleaning boilers, calorifiers, heat exchangers and other types of similar equipment where rust and scale removal is necessary.

Unitor™ Chemical Cleaning Unit: PN 737189.

Notes regarding safety in descaling operations:

Descaling liquid contains strong acids. Handle with care and pay special attention to Material Safety Data Sheet and / or Product Label. Use personal protection equipment as recommended.

Reactants from acid components in descaling products may include gasses like carbon dioxide and hydrogen. Formation of hydrogen gas can be monitored with gas detection equipment on the vents. To avoid suffocation and potentially explosive atmosphere, gasses should be removed safely by purging system with water after draining the cleaning solution. Vent of system during descaling operations must be provided for same reason. Always use gas detection equipment to check that the atmosphere is safe before entering confined spaces for inspection after descaling operations. When circulating the descaling solution, always circulate with inlet at the bottom to avoid air pockets and potential entrapment of gaseous reaction products.

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A part of Wilhelmsen Maritime Services,
a Wilh. Wilhelmsen group company