Marine Coatings – Vessel Areas Ballast Tank Coatings

A New Era in Marine Protective Coatings.

Chemco is a world leader in innovative coating solutions in the Marine industry with over 35 years experience in the design and manufacture of unique, state of the art technology.

In recent years, the high cost of grit blasting and grit disposal, as well as strict environmental control necessary for the application of conventional paint systems, has forced the industry to look at alternative surface preparation methods and, consequently, for products which can be applied on damp/wet substrates.

Utilising truly wet & rust tolerant coating technology, Chemco’s marine coatings enormously reduce the cost and duration of all contracts. Many forward thinking companies throughout the world have been utilising these technological breakthrough systems for more than 10 years with complete success.

It is through the most advanced coating systems that we can now not only comply with all legal legislations and help the environment, but reduce the cost of maintenance as well as life cycle cost.

Chemco uniquely guarantee coating performance and lower application costs for any application: patch repair, complete refurbishment or New Build.

Product Information


Ballast tanks are areas of complex steel structure with poor access and permanent condensation.

The application of conventional paint systems in sea water ballast tanks can lead to many problems; shrinkage, porosity, becoming brittle with age, bad edge and weld coverage. Conventional paint systems additionally have extensive equipment requirements. Soft coatings are also no longer acceptable due to changes in IMO regulations.

Chemco’s innovative coating system eradicates all traditional sea water ballast tank problems.


Millions of square metres of this revolutionary coating system have now been applied in sea water ballast tanks by almost all major shipping companies throughout the world. Its benefits include:

  • Solvent-free, wet & rust tolerant primer
  • Solvent-free, wet tolerant glassflake topcoat
  • Surface preparation standard: as low as St 2, WJ-4
  • No humidity or dew point restrictions
  • Application in dry dock, quayside or at sea
  • Outstanding adhesion to rusty or poorly prepared and wet surfaces
  • Significantly reduced Health & Safety and Fire Hazard
  • No re-coating limitations
  • Ballast within 8 hours
  • Comprehensive guarantees – even on patch repairs
  • Compatible with almost all protective coatings, including shop primers and coal-tar epoxies

Epo-chem™ RS 500P & Epo-chem™ RA 500M

RS 500P is a solvent-freewet & rust tolerant primer or primer-finish epoxy coating system. The system’s long-term performance is based on completely sealing the surface (porous-free film) and arresting the rust totally.

RA 500M is a solvent-free, wet tolerant and highly chemical resistant glassflake epoxy single/topcoat.

RS 500P and RA 500M combine to make a multi-functional, groundbreaking coating system which is perfectly suited to ballast tanks.

Epo-chem™ RS 500P is a unique solvent-free, wet & rust tolerant epoxy primer or primer/finish protective coating.

The system’s long-term performance is based on completely sealing the surface and arresting the rust totally.

The use of sacrificial fillers enables it to be applied to surface standards as low as Sa 1, WJ-4 or St 2. It can be utilised as a one-coat system by brush, roller or airless spray.

RS 500P and RA 500M combine to make a multi-functional, groundbreaking coating system which has been extensively used for a wide variety of applications.

Primary features & charactertistics

  • Solvent-free
  • Wet & rust tolerant – Can be applied on soaking wet surfaces
  • Excellent adhesion properties
  • Can be applied in any environmental condition
  • No operational shutdown; nearby work can continue without disruption
  • 100% solid / Zero VOC
  • NSF certified for potable water applications
  • User-friendly with high flexibility and ease of application
  • No over-coating limitations
  • No humidity or dew point restrictions
  • Health & Safety risk and Fire Hazard significantly reduced
  • Quick back-in-service times

Application areas 

RS 500P is fully compatible with all methods of surface preparation (abrasive blasting; water jetting; mechanical) and has been extensively used for almost all vessel areas:

  • All Tank internals
  • Pipework (internal/external)
  • Decks (internal/external)
  • Accommodation Blocks
  • Underwater Areas
  • Superstructures
  • Engine Rooms
  • Void Spaces
  • Plus many more…

Product Videos

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Full Marine Coatings

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Ballast Tank Coatings

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Cargo Hold Coatings

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Deck Coatings

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Hull Coatings

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RA 500M

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RS 500P