IMO Product Catalogue





• Extremely effective for removing inert gas soot.

• Effective cleaning of stainless steel and epoxy coated tanks.

• Strong deodorizer.

• Safer to use, substituting liquid caustic based cleaners.

• Heavy duty, water-based cleaner.

• Versatile for multipurpose cleaning.

• Cost effective: dilute for most cleaning needs.

• Contains neither hydrocarbon solvents, nor nonyl phenol ethoxylates or other estrogenic compounds.

• Non-flammable & non-toxic.

• Bio-degradable, minimizing environmental concerns.

• IMO-approved, minimizing environmental concerns.



IGS CLEANER (INERT GAS SOOT CLEANER) is a water-based alkaline tank cleaner and degreaser, specifically formulated for the effective removal of Inert Gas Soot (IGS) in tanks.

IGS CLEANER is developed for overcoming the limitations imposed by liquid caustic based cleaning compounds. Its non-caustic cleaning and degreasing action, ensures the soot removal, without harming the paint and the personnel using it. IGS CLEANER is highly concentrated, comprising the most powerful biodegradable detergents, surfactants and corrosion inhibitors.

IGS CLEANER can also be dissolved in water for removing mineral oils, petroleum products, vegetable and animal oils, fish oils, carbon deposits, dirt, grease and grime. Compatible with most painted surfaces and dries leaving a good shine.

IGS CLEANER is water based, non flammable and biodegradable.

IGS CLEANER is IMO-approved. Only cleaners registered in Annex10 of IMO’s MEPC.2/ Circular can be used and disposed of at sea for cargo tank cleaning, when the cargo residue slops are disposable at sea. Its composition meets the criteria for not being harmful to the marine environment according to MARPOL Annex V.



IGS CLEANER can be used to clean for stainless steel and epoxy coated tanks from Inert Gas Soot. Diluted, it removes most contaminations.

IGS CLEANER can also be used as a deodorizing wash in all applications.

Suitable for epoxy, but not for zinc silicate coatings. In this case, use it diluted, and only after thorough testing of the product and surface interaction.

Please refer to “CHEMO TANK CLEANING SOLUTIONS” Brochure, which summarizes the solutions that CHEMO offers for tackling a variety of contamination and deposit problems.



Instructions are based on experience and are meant only as a guide since circumstances for each tank cleaning operation vary. They are not intended to interfere with the judgment of the vessel’s responsible personnel. It is highly recommended to always test all cleaner solutions on a small area of tank coating, before full scale application.

Precleaning tanks with high pressure warm water is highly recommended since large deposits of oil or other residues in the tank must be removed to ensure an effective cleaning operation. Note that all cleaning chemicals have reduced effect with seawater. Prior to use of any chemicals, make sure the tanks and lines are well stripped and drained.

Do not overheat as this may change the characteristics of the cargo and in some cases burn the cargo on the bulkhead. Carefully read the cargo specification.

Especially for zinc, since it is porous, a prolonged pre-cleaning with lower temperatures is highly recommended before chemicals are used on such lining.

Please seek the advice of CHEMO Service Engineers, for inspecting your specific problem and offer recommendations for best results at minimum costs.

When recirculation is applied, mix IGS CLEANER either in tank bottom or void space, at a rate between 0.3% and 2.0% with water, depending on the degree of contamination. Recycle the cleaning solution through the tankwashing system for a period of at least two hours per machine drop, with a cleaning time of 4 hours per tank usually being sufficient.

A minimum temperature of 70°C is recommended, since the cleaning ability is enhanced and the cleaning time shortened. However, the solution may be used at ambient temperature.

Tip: Do not use the entire quantity of IGS CLEANER in one solution for all tanks to be cleaned. Keep a few drums for boosting the solution’s cleaning efficiency for the last few tanks.

When recirculation is completed, wash down with water, using the maximum pressure available. In the case that stains remain on the surfaces, spot clean with undiluted IGS CLEANER directly on the stained area. Allow a reaction time of 30 minutes and then rinse with water. Do not leave the product to dry on bare coating. For persistent deposits, agitation by scrubbing will assist the cleaning operation. Heated water will increase the cleaning effect.

For general use, dilute appropriately, depending on the contamination and use conventional cleaning methods, such as brushing, scrubbing or spraying. Allow the product to act and then rinse off with fresh water before drying.


Download full description in pdf format.


Product Code: 110205

This product is used for the highlighted part below:

Problems solved:

» Mineral oils
» Inert Gas Soot
» Odor problems
» Drying or semi-drying oils
» Carbon deposits
» Grease



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CHEMO operates according to the International Quality Standards and is certified according to ISO 9001:2008, ISO 14001:2004 and EMAS (Eco Management and Audit Scheme)

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