CASE STUDY

Ballast Tank Refurbishment

Client: IBL – Ireland Blyth Ltd

Industry: Marine

Scope: Ballast Tank Refurbishment

Date: October 2013

Location: South Africa

Products: RS 500P and RA 500M

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OVERVIEW

The ballast tanks of the vessel M/V AUXIS required a full refurbishment for over 6,000m² (double bottoms tanks, wings tanks and deep tank) after the original coatings had failed.

CHALLENGE

Some areas of the ballast tanks were heavily corroded with limited access. There was also a very limited timescale for completion of this project and as a result, grit blasting was not permissible.

SOLUTION

Utilise water jetting as the surface preparation method to WJ-3 standards. Apply one stripe coat of solvent-free, wet & rust tolerant epoxy Epo-chem™ RS 500P followed by one full coat of Epo-chem™ RS 500P @ 200µ DFT. In some localised areas, where most of the existing paint was still adherent, one primer coat of Epo-chem™ RS 500P in all the bare steel areas was applied, followed by one topcoat of solvent-free, wet tolerant epoxy Epo-chem RA 500M applied @ 250µ DFT.

OUTCOME

The work programme was successfully completed, within the timeframe given and to the satisfaction of all concerned: Owner, Classification Society and Shipyard.

BENEFITS

• Solvent-free
• Environmentally friendly system (no grit blasting)
• Reduced H&S and fire precautions
• No dew point or humidity restrictions
• No overcoating limitations
• No delays
• No disruption to other on-going work (hot)

corroded ballast tank internal walls

Before Surface Preparation

ballast tank internals painted in light grey

Completed Application

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