Soft Coating Removal & Ballast Tank Repair

Client: Transocean

Industry: Marine

Scope: Soft Coating Removal & Ballast Tank Refurbishment

Date: December 2009

Location: Singapore

Products: RS 500P


Transocean required to refurbish ballast tanks (over 12,000m²) from a soft coating to a hard coating finish as part of the classification. The application had to be environmentally friendly. Chemco were able to utilise Epo-chem™ RS 500P solvent-free, wet tolerant that can be applied without the need of dehumidification equipment, making the project more cost effective.


Classification Societies are insisting on a measurable DFT on top of steel for corrosion protection. Soft coating to be replaced with hard coating.


The Shipyard and Transocean were interested in Chemco 500 Series, a system that was 100% environmentally friendly for both the tank cleaning and the subsequent coating system.


The tanks were high pressure washed for removal of soft coating. The resulting substrate, and with the high humidity prevailing, Epo-chem™ RS 500P solvent-free, wet & rust tolerant epoxy system was applied in two coats to a DFT of 300µ. Adhesion tests were taken to assure the owners of the excellent adhesion (min 1,200psi) of the system. The system was guaranteed for long-term in-service use.


• Solvent-free
• Client approval
• Shipyard work-rate was not affected
• Reduced H&S and Fire Precaution
• Reduced cost of plant and equipment
• Application can be carried out in very high humidity or on wet substrate
• Chemco International system will protect the steel substrate in excess of 10 years

moisture lines on unpainted internal tank wall

After Surface Preparation

grey painted internal tank wall

Completed Application

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