New maintenance products from International

Citation

(2003), "New maintenance products from International", Anti-Corrosion Methods and Materials, Vol. 50 No. 2. https://doi.org/10.1108/acmm.2003.12850bad.004

New maintenance products from International

New maintenance products from International

Keywords: Coatings, Anti-corrosion, Maintenance

International Coatings Ltd, part of the Akzo Nobel group of companies, has introduced two new Marine maintenance products: Intershield^® 803, an abrasion resistant, anticorrosive coating and Interbond^® 808 Aluminium, a surface tolerant, seawater ballast tank coating.

In recent years there has been an increased awareness of the need for effective corrosion control, particularly in cargo holds and in seawater ballast tanks. One of the main reasons for this increased awareness is the number of ship losses which have occurred where corrosion of the vessel structure may have been a contributory cause.

Intershield^® 803: whilst cargo holds are the revenue earning spaces of a bulk carrier, it is the structural integrity of these vessel areas which is vital to the continuing profitability and safe operation of the ship. Abrasion resistant cargo hold coatings defend against, and facilitate the management of corrosion. This defence may employ a number of mechanisms, singly or in combination, the most common of which is barrier protection, which involves the placement of an effective barrier between the abrasive or corrosive environment and the substrate. When subjected to abrasion, an essential requirement of a high performance barrier coating is that it must be tough enough to resist mechanical damage, so minimising exposure of the underlying substrate to the cargo hold environment. In designing abrasion resistant coatings, physical and mechanical properties are therefore very important.

Intershield^® 803 has been specifically designed to provide excellent abrasion and corrosion resistance, good cohesive and adhesive strength and good resistance to underfilm corrosion creep. Intershield^® 803 is compatible with surface preparation standard Sa2 (ISO 8501 – 1:1998, SSPC-SP6) which is practically achievable in cargo holds. This is particularly an important feature for operators of older vessels. Typically applied as a two coat system in cargo holds, Intershield^® 803 offers the following key features:

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  excellent abrasion resistance,

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  rapid attainment of mechanical properties, even at low temperatures (>10°C),

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  can be applied to surfaces prepared to Sa2 (vessel area dependent),

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  FDA compliant,

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  certified for the carriage of grain,

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  smooth surface,

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  222 g/lt VOC compliant (EPA method no. 24),

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  tar free, and

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  aromatic amine free.

Intershield^® 803 may also be applied to protect critical outer hull vessel areas including the underwater hull, boottop and topsides.

Interbond^® 808 Aluminium: in seawater ballast tanks, where physical factors combine to make on board refurbishment or repair difficult (e.g. corrosion, pitting, existing coatings, restricted access and damp, humid conditions), surface preparation, coatings application and subsequent in service performance can, almost inevitably, be compromised. For these on board projects the use of specifically designed surface and damp tolerant anticorrosive coatings is especially recommended.

Interbond^® 808 Aluminium is a practical refurbishment and repair coating suitable for use in seawater ballast tanks, cofferdams, void spaces, wet spaces, bilges and crude oil tanks.

Interbond^® 808 Aluminium provides high levels of corrosion protection and, in addition, the unique combination of adhesion promoters and special surfactants maintains performance on compromised substrates. Applied as a single coat (or as a two coat system in combination with Interbond 808 Buff), Interbond^® 808 Aluminium offers the following key features:

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  high level of corrosion protection,

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  surface tolerance,

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  damp tolerance,

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  light colour,

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  tar free,

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  high build,

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  one coat application capable (Interbond 808 Aluminium),

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  179 g/lt VOC compliant (EPA method no. 24),

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  rapid sea water ballast loading,

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  DNV B1 classification, and

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  epoxy technology.

For further information, visit Web site at: www.international-marine.com