What is INTERSMOOTH 7460 SPC and why choose it?
INTERSMOOTH 7460 SPC from International Marina is a high solids, high performance, TBT-free, low-friction self polishing copolymer (SPC) antifouling coating. It is specifically formulated for deep sea vessels in maintenance and repair, especially where a reduction in solvent emissions is required. Its self-polishing SPC technology maintains antifouling performance while helping to keep hull surfaces smooth for consistent protection over time.
Main features
- TBT-free SPC antifouling: Organotin-free, self-polishing copolymer system compliant with the International Convention on the Control of Harmful Antifouling Systems on Ships (AFS 2001).
- High solids content: 54% ±2% volume solids (ISO 3233:1998) to help reduce solvent emissions compared with lower-solids coatings.
- Low friction, self-polishing film: Designed to maintain a smooth surface during immersion, with a slight colour change expected over time.
- Designed for deep sea vessels: Optimised for ocean-going ships in maintenance and repair dry-dock schedules.
- Flexible application methods: Can be applied by airless spray (recommended for large areas), as well as by brush or roller for small areas and touch-up.
- Single-pack product: No mixing ratio or curing agent required; supplied as a single component with a typical flash point of 25°C.
- Certified compliance: Recognised by Bureau Veritas, DNV, Korean Register of Shipping and Lloyds Register as compliant with the AFS 2001 Convention when used in an approved scheme.
- Biocidal actives based on copper technology: Contains dicopper oxide and other copper-based actives (organotin-free) for antifouling performance.
Key technical characteristics
Product information
- Type: TBT free, low friction, self polishing copolymer (SPC) antifouling coating.
- Intended use: Deep sea vessels; maintenance and repair.
- Colours (selected codes): BEA754 Brown, BEA757 Red, BEA751 Black; BEA744 Brown, BEA747 Red, BEA741 Black (the latter range only available in non-regulated European countries).
- Volume solids: 54% ±2% (ISO 3233:1998).
- Typical dry film thickness (DFT): 75 – 200 microns (139 – 370 microns wet), specified according to final use.
- Theoretical coverage: 7.2 – 2.7 m²/litre at 75 – 200 microns DFT (allow appropriate loss factors).
- Finish/Sheen: Not applicable.
- Mix ratio / Part B: Not applicable (single-pack product).
- Flash point: 25°C (closed cup, typical).
- Application methods: Airless spray (recommended), brush, roller. Conventional spray is not recommended.
- Thinner / cleaner: International GTA007 Thinner/Equipment Cleaner. Thinning is normally not required.
Drying and flooding times (typical)
- Touch dry (ISO 9117/3:2010)
- -5°C: 120 minutes
- 5°C: 60 minutes
- 25°C: 40 minutes
- 35°C: 30 minutes
- Before flooding – single coat
- -5°C: 30 hours
- 5°C: 12 hours
- 25°C: 10 hours
- 35°C: 8 hours
- Before flooding – multiple coats
- -5°C: 48 hours
- 5°C: 18 hours
- 25°C: 14 hours
- 35°C: 12 hours
- Overcoating interval with Intersmooth 7460HS SPC (minimum / maximum)
- -5°C: 12 hours / 28 days
- 5°C: 6 hours / 28 days
- 25°C: 4 hours / 28 days
- 35°C: 3 hours / 28 days
- Note for major refurbishment and repair: if any single coat DFT is >150 µm or total DFT is >300 µm, flooding times must be increased to 48 hours at ≤10°C, 36 hours at 25°C and 24 hours at 35°C.
VOC and regulatory data
- VOC (as supplied, EPA Method 24): 425 g/litre (typical).
- VOC (EU Solvent Emissions Directive 1999/13/EC): 226 g/kg of liquid paint as supplied.
- VOC (Chinese National Standard GB23985): 403 g/litre.
- EPA registration: Product is not registered in the USA or Canada.
- Compliance: Does not contain organotin compounds acting as biocides; compliant with the International Convention on the Control of Harmful Antifouling Systems on Ships (IMO AFS/CONF/26, 2001).
Unit size, storage and lifetime
- Standard unit size: 20 litre pack (20 litre volume pack).
- Typical unit shipping weight: 38.6 kg (20 litre unit).
- Shelf life: 12 months at all temperatures, subject to reinspection thereafter.
- Storage conditions: Store in a dry, shaded, well-ventilated area, away from sources of heat and ignition. Keep containers tightly closed and upright. Avoid direct sunlight and keep away from oxidising materials.
Applications and use cases
Typical uses
- Antifouling protection for deep sea commercial vessels in dry-dock maintenance and repair.
- Major refurbishment of existing antifouling schemes where a high solids, solvent-reduced option is required.
- Overcoating existing compatible TBT-free antifoulings from International or competitors (subject to system recommendations).
Surface preparation and compatible systems
- Compatible primers: Must always be applied over a recommended primer coating scheme. The primer surface must be dry, clean and within its specified overcoating interval (refer to relevant primer data sheet).
- Surface cleanliness: All surfaces must be clean, dry and free from contamination. High pressure fresh water wash or fresh water wash and solvent cleaning to SSPC-SP1 are recommended for removal of grease, oil, soluble contaminants and other foreign matter.
- Major refurbishment: Areas of breakdown or damage should be prepared to the specified standard (e.g. SSPC-SP10) and re-primed prior to application.
- Overcoating self: When applying over existing Intersmooth 7460HS SPC, clean the entire area as soon as the vessel enters dry dock, using close high pressure fresh water (3,000 psi / 211 kg/cm²) before the hull dries, then apply within the primer’s specified overcoating interval where relevant.
Application guidance
- Mixing: Single-pack coating; always mix thoroughly with a power agitator before application.
- Airless spray (recommended):
- Tip range: 0.54 – 0.8 mm (21 – 31 thou).
- Minimum total output fluid pressure at spray tip: 190 kg/cm² (2700 psi).
- Brush / roller: For small areas only; multiple coats may be needed to achieve specified film thickness.
- Thinning: Use International GTA007 if required. Thinning is normally not necessary. Do not thin beyond local environmental legislation limits.
- Work stoppages and cleaning of equipment: Flush all equipment thoroughly with GTA007. Store unused material in tightly closed containers; partially filled containers may develop skinning or viscosity increase and should be filtered before reuse.
- Application conditions: Apply in good weather. Substrate temperature must be at least 3°C above the dew point. For optimal application properties, bring material to approximately 21°C before mixing and application.
- Coating life: Coating lifetime is directly proportional to the thickness applied; performance depends on achieving the specified film thickness.
FAQ
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Is INTERSMOOTH 7460 SPC compliant with AFS 2001 and TBT regulations?
Yes. It does not contain organotin compounds acting as biocides and is compliant with the International Convention on the Control of Harmful Antifouling Systems on Ships (AFS 2001).
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What types of vessels is this product designed for?
It is specifically designed for deep sea vessels and is intended for maintenance and repair applications in dry dock.
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Which application methods are recommended?
Airless spray is recommended for large areas. Brush and roller can be used for small areas or touch-up, bearing in mind that multiple coats may be needed to reach the specified DFT. Conventional spray is not recommended.
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What thinner and cleaner should be used?
International GTA007 should be used as both thinner (if required) and equipment cleaner.
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How long is the shelf life?
The shelf life is 12 months at all temperatures, subject to reinspection thereafter when properly stored in dry, shaded conditions away from heat and ignition sources.
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What is the recommended dry film thickness?
The typical DFT range is 75 – 200 microns, with the exact specification depending on the final service requirements.
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Can it be applied over existing antifoulings?
Yes, it can be applied over compatible International TBT-free antifoulings, International Intersmooth SPC products or competitors’ antifoulings, subject to system recommendations from International Paint.
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What happens to the colour once the vessel is in service?
On immersion, the coating will exhibit a slight colour change, which is normal for this SPC antifouling system.
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Is the product registered in the USA or Canada?
No. The product is not registered with the EPA in the USA or Canada.
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Does coating thickness affect lifetime?
Yes. Coating lifetime is directly proportional to the film thickness applied; achieving the specified DFT is critical for performance.
Section 14 – Transport information
- UN number / ID number: UN1263.
- UN proper shipping name: PAINT.
- Transport hazard class: Class 3 (flammable liquid).
- Packing group: III.
- Environmentally hazardous / Marine pollutant: Yes. Marine pollutants include dicopper oxide and zinc oxide. The environmentally hazardous substance mark is not required when transported in pack sizes ≤5 L or ≤5 kg.
- ADR/RID additional information: Tunnel code D/E.
- IMDG additional information: Emergency schedules F-E, S-E. Marine pollutant mark not required for ≤5 L or ≤5 kg.
- IATA additional information: Environmentally hazardous substance mark may appear if required by other transport regulations.
- Bulk transport according to IMO instruments: Not applicable.
- On-site transport precautions: Always transport in closed, upright and secure containers. Ensure personnel transporting the product know the procedures in case of accident or spillage.
Section 8 – Individual protection measures
The following information is based on the Safety Data Sheet and is intended for professional and industrial users who handle INTERSMOOTH 7460 SPC during application, maintenance and clean-up.
Engineering controls and hygiene
- Use only with adequate ventilation, including local exhaust or process enclosures, to keep airborne concentrations below applicable limits and below lower explosion limits.
- Use explosion-proof ventilation and electrical equipment.
- Wash hands, forearms and face thoroughly after handling, before eating, drinking or smoking and at the end of the work period.
- Contaminated work clothing should not leave the workplace; wash before reuse.
- Ensure eyewash stations and safety showers are located close to work areas.
Eye and face protection
- Wear chemical splash goggles and/or a face shield compliant with approved standards when there is a risk of exposure to splashes, mists, gases or dusts.
- Where inhalation hazards exist, a full-face respirator may be required instead of goggles.
Hand protection
- Use chemical-resistant, impervious gloves complying with an approved standard whenever handling this product if indicated by risk assessment.
- For prolonged or frequently repeated contact, use gloves with protection class 6 (breakthrough time >480 minutes according to EN374). Recommended: Viton or nitrile gloves with thickness ≥0.38 mm.
- For brief contact, gloves with protection class 2 or higher (breakthrough time >30 minutes according to EN374) are recommended. Suggested: nitrile gloves with thickness ≥0.12 mm.
- Replace gloves regularly and immediately if damaged. Glove performance can be reduced by physical or chemical damage and poor maintenance.
Body and skin protection
- Select protective clothing based on the specific task and associated risks and have it approved by a specialist before use.
- Where there is a risk of ignition from static electricity, wear anti-static protective clothing (overalls, boots and gloves) conforming to relevant standards such as EN 1149.
- Use appropriate footwear and additional skin protection as required by local risk assessment.
Respiratory protection
- Based on the assessed hazard and exposure potential, use a respirator that meets the appropriate standard or certification.
- Wear a respirator conforming to EN140 fitted with an A/P2 filter or better when ventilation is inadequate.
- Dry sanding, flame cutting and welding on the dry paint film will generate dust and/or hazardous fumes; wet sanding/flatting is preferred. If exposure cannot be prevented by local exhaust ventilation, use suitable respiratory protection.
*Contenido generado por IA
