CASE STUDY

Ballast Tank Repair – Crude Oil Tanker

Client: Shipmanagement Company

Industry: Marine

Scope: Ballast Tank Refurbishment

Date: October 2020

Location: China

Products: RS 500P

Download PDF

OVERVIEW

Large areas of the ballast tanks on board a major crude oil tanker were suffering from severe corrosion.

These areas had to be repaired with a coating system which would provide long-lasting performance and protection from further corrosion.

CHALLENGE

In many of the tanks, the corroded spots were significant and often in hard-to-reach areas; making them difficult to prepare effectively ahead of coating application.

A coating solution which could be applied on large, minimally prepared surface patches was required.

The project was carried out in high temperature conditions with exposure to high relative humidity.

SOLUTION

The surface was prepared using a combination of hydroblasting and mechanical power tooling, to WJ-3 and St 3 standards respectively.

One stripe coat and one full coat of Chemco’s solvent-free, wet & rust tolerant coating RS 500P was then applied to achieve a DFT of 200μm.

OUTCOME

The project was completed within the given time frame, with all ballast tanks ready for a return to service.

Chemco was chosen for the repair project due to previous success in completing coating works for other vessels in the fleet; with further repair projects set to come in 2020.

BENEFITS

Solvent-free
• Wet & rust tolerant
• Can be applied on minimally prepared surfaces
• No humidity or dew point restrictions
• No recoating limitations
• No nearby operational shutdown required
• Quick return to service (product can ‘continue to cure’ underwater)
• Improved Health & Safety and reduced risk of Fire Hazard

rusted tank internals

Ballast Tank Original Conditions

Ballast Tank Original Conditions

Ballast Tank During Surface Preparation

Ballast Tank During Surface Preparation

After Stripe Coat of RS 500P

After Stripe Coat of RS 500P

Completed Application of RS 500P

Completed Application of RS 500P

Contact Our Specialist Coating Advisors

Our coating specialists can suggest the right solution for your specific application.

Contact Coatings Advisor
View Our Brochure

Get more info on our
Products & Services…

Our coating specialists can suggest the right solution for your specific application.

Contact An Advisor
View Our Brochure
Go to Top