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8/6/2019 Hempel Folder on Imo - Pspc

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The IMO Performance Standard

for Protective Coatings (PSPC)New ballast tank regulations for newbuildings

All you need to know about


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The International Maritime Organization (IMO) is the specialist United Nations agency

tasked with improving maritime safety and preventing pollution from ships.

On 8 December 2006, the IMO adopted the new Performance Standard for Protective

Coatings (PSPC), as resolution MSC.215(82). This important new standard will also be

included in the International Convention on Safety of Life at Sea (the SOLAS Convention).

The PSPC is intended to improve the safety at sea by reducing the corrosion encountered

in steel ships, and applies specifically to the protective coatings used for dedicated

seawater ballast tanks in all types of ships, and also in the double-side skin spaces of

bulk carriers.

Hempel the mosteffective way to protect

your investment


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The aim of the PSPCThe aim of the new standard is to improve safety at sea by avoiding the effects of corrosion,

thus enhancing the structural integrity of the vessels as a whole. In specific terms, this

involves a target of 15-year useful coating life for ballast tanks classified as being in good

condition, according to the definition used by the International Association of Classification

Societies (IACS).

The scope of the PSPCThe PSPC applies to newbuildings, and covers protection of the water ballast tanks in all

types of ships of 500 gross tonnage and more as well as double-side skin spaces in bulk

carriers of 150 metres or more in length.

When does the PSPC come into force?The PSPC enters into force for all shipbuilding contracts placed on or after 1 July 2008.

If there is no building contract, it applies to all keels laid from 1 January 2009 onwards.

It will then apply to all vessels delivered from 1 July 2012 onwards. It will be mandatory,

and an amendment to SOLAS regulations II-1/3-2 and XII/6.

PSPC already applies to the ballast tanks and double-side skin spaces of tankers and bulk

carriers built in accordance with Common Structure Rules (CSR) since 8 December 2006

the date on which the PSPC standard was adopted.


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What does PSPC cover?The PSPC sets out requirements for improved procedures and better quality control via

increased inspection requirements at all stages within the following three main areas

briefly described below.

Surface preparation(primary and secondary), including requirements to: Profile Cleanliness Shop primer

Coating applicationwith requirements that include: Surface preparation in all stages Dry film thickness (DFT) Coating advisers must have FROSIO or NACE certification

Coating qualityincluding requirements regarding: Type Pre-qualification Specification

Overall, there are significantly increased demand for documentation of the entire coating

process, right from the raw steel plates to the final coating system. These must be compiled

into a Coating Technical File (CTF), which is to be kept on board and maintained throughout

the lifetime of the ship.

See the last two pages for a summary description of specific PSPC requirements.


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How will PSPC affect shipowners?Shipowners will encounter: The benefits of vessels of higher quality

Lower maintenance costs Better retention of investment value Additional costs at newbuilding stage to meet PSPC inspection criteria A need for better documentation of the maintenance processes associated

with water ballast tank coatings That paint specifications for newbuildings need to comply with PSPC

That a CTF is to be maintained and kept on board the ship

How will PSPC affect shipyards?Shipyards might have to consider new production procedures and willencounter signi cantly increased demand for documentation, in order tocomply with all PSPC requirements. This will result in: Extra construction time and slower throughput A need to have or train more staff to FROSIO or NACE certification to do inspections Possible investments in new facilities and additional manpower A significantly higher level of documentation required with regards to the selection,

application and inspection of ballast tank coatings Fewer options left available regarding shop primer, ballast tank coating

systems and dry film thicknesses A requirement that all inspection data from raw steel to final coating are both

retrievable and auditable and made available in the CTF The need to take responsibility for preparing the CTF

How will PSPC affect coating manufacturers?Coating manufacturers will encounter: A greater need for testing and documentation Increased requirements and costs for obtaining type approvals for water

ballast tank coating systems from external test laboratories Requirements to participate in preparing the CTF

The need to modify product data sheets to conform with the PSPC

Requirements to specify the maintenance plan to sustain a target of 15-year

useful coating life for the coating system in question Greater demand for FROSIO or NACE certified personnel to carry out the

required inspection work


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How can Hempel help you?Hempel welcomes and supports regulations and standards like PSPC thataim at increasing the service life of coatings. By selecting Hempel as yourmarine coatings supplier, you will choose the most effective protection for

your investment via: Expert consultation in any aspect related to coatings Coating systems and solutions of the highest quality and with proven performance Coating systems certified and type-approved in full compliance with the PSPC Exceptional technical service provided by highly skilled and trained coating advisors

who carry out expert inspections and make sure all standards are followed

An integral part of Hempels commitment to provide the highest performing coating

solutions is acknowledging the importance of skilled coating advisors. Hempel is an

approved FROSIO training organisation since 1996 and Hempel Academy is continuosly

providing technical training to a large number of both internal and external participants

from coatings related field.

Hempel is committed to improving water ballast tank coatingperformance even further via ongoing: Active participation in developing improved standards Development of new and innovative coatings solutions Close collaboration with shipowners, shipyards and classification societies to

ensure the best possible understanding and effective implementation of both

existing and new standards.


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Surface preparation

Blasting to Sa 2 with profiles between 30-75 m

Soluble salts (equivalent to NaCl) must be removed to less than 50 mg/m 2 sodium chloride (lower than the residue left by a normal fingerprint)

Shop primer must be zinc silicate-based (or equivalent) and application andcompatibility with coating system must be documented. If not, at least 70% of intact shop primer must be cleaned to Sa 2

All sharp edges must be rounded to a radius of 2 mm or more

Visible dust must be removed

There must not be any oil contamination present

Erection joints must be prepared to St 3 or Sa 2. Areas with rust and damagedcoating must be blasted to Sa 2, if these constitute more than 2% of the

total surface area of the tank

Coating inspection

Coating advisers responsible for inspections must be certi ed toFROSIO Level III (Red) or NACE Level II or equivalent.

Inspections must include (but are not limited to):

Surface preparation for all stages, including surface conditions that include temperature, relative humidity, dew point, salts, oil, grease and othercontamination

For primary surface preparation; Confirmation of the quality and thickness of the shop primer and its subsequent curing

For block assembly and erection; Visual inspection and measurements of dryfilm thickness (DFT)

Summary of specific PSPC requirements


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Coating system

Coating must be an epoxy-based system (or some other system with performance that complies with test procedures)

Use of a multi-coat system that must involve contrasting colours

Top coat must be light in colour to ease inspection

Pre-qualified coating systems must have a B1 rating (DNV Ballast tank

simulation test) and/or 5 years in-service life in GOOD condition(according to IACS)

2 full coats and 12 stripe coats

Minimum Nominal Dry Film Thickness (NDFT) must be 320 m with the90/10 rule

Compatibility with zinc silicate shop primer must be documented

CTF (Coating Technical File) must includeas minimum

Statement of compliance or type approval for the coating system

Copy of the Technical Data Sheet for the coating system

The shipyards work records regarding application of the coating

Procedures for the inspection and repair of the particular coating system used

A coating log provided by the coating inspector, stating that the coating was applied in accordance with specifications and to the satisfaction of thecoating supplier

Documentation of the shipyards verified inspection, featuring the completiondate, inspection results, any remarks and the relevant signatures

Details about any maintenance and repair of the coating during its service life


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Read more at www.hempel.com


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The Hempel Group Head Office

Hempel A/SLundtoftevej 150DK-2800 Kgs. LyngbyDenmark

Phone: +45 45 93 38 00Fax: +45 45 88 55 18E-mail: [email protected]: [email protected]

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