INTERTUF 16

What is INTERTUF 16 and why choose it?

INTERTUF 16 from International Marina is a one-pack, high build bituminous coating designed for the economical protection of enclosed and difficult-to-access steel surfaces. It is formulated for use behind linings, behind pipework and in cofferdams, providing a durable barrier in areas where maintenance access is limited. Suitable for newbuilding, maintenance and repair, and on-board maintenance, INTERTUF 16 combines ease of application with high film build to protect steel structures in demanding marine environments.

Main features

• One-pack bituminous coating: Simple single-component product, no mixing ratio or separate curing agent required.
• High build formulation: Typical dry film thickness of 100 microns (189 microns wet) in a single coat for robust protection.
• Targeted for enclosed steel areas: Recommended for use behind linings, behind pipes and in cofferdams where economic, long-term protection is required.
• Versatile in project phase: Suitable for Newbuilding, Maintenance & Repair, and On Board Maintenance work.
• Approved application methods: Airless spray, brush or roller, allowing efficient coverage of large areas as well as localised touch-up.
• Colour options: Available as JBA016-Black and JAA017-Aluminium. Intertuf 16 JAA017 aluminium shade is specified for use as the second coat in the system.
• Good volume solids: 53% ±2% by volume (ISO 3233:1998) for effective film build per coat.
• Regulated VOC content: 416 g/L (calculated) and 418 g/kg of liquid paint as supplied, in line with EU Solvent Emissions Directive 1999/13/EC.
• Solvent-borne for interior and exterior use: Suitable for interior and exterior steel in marine environments.

Key technical characteristics

• Product type: Bituminous coating, solvent-borne.
• Component count: Single pack (no Part B, no mix ratio).
• Colours: JBA016-Black, JAA017-Aluminium.
• Finish/Sheen: Not applicable.
• Volume solids: 53% ±2% (ISO 3233:1998).
• Typical dry film thickness (DFT): 100 microns.
• Typical wet film thickness (WFT): 189 microns.
• Theoretical coverage: 5.30 m²/litre at 100 microns DFT (loss factors must be allowed for in practice).
• Flash point: 35°C (closed cup, single pack).
• VOC (typical): 416 g/L (calculated); 418 g/kg of liquid paint as supplied.
• Recommended application methods: Airless spray (preferred), brush, roller. Conventional spray is not recommended.
• Airless spray equipment: Tip range 0.46–0.66 mm (18–26 thou); total fluid pressure at spray tip not less than 176 kg/cm² (2500 psi).
• Thinner/cleaner: International GTA004. Thinning is not recommended; if unavoidable, maximum 5% by volume and only where permitted by local legislation.
• Drying times (typical):
  • -5°C: Touch dry 36 h; hard dry 5 days.
  • 5°C: Touch dry 24 h; hard dry 3 days.
  • 25°C: Touch dry 8 h; hard dry 2 days.
  • 35°C: Touch dry 8 h; hard dry 2 days.
• Overcoating intervals with INTERTUF 16 (minimum, extended maximum):
  • -5°C: Min 36 h, maximum extended (ext).
  • 5°C: Min 24 h, maximum extended (ext).
  • 25°C: Min 8 h, maximum extended (ext).
  • 35°C: Min 8 h, maximum extended (ext).
• Substrate temperature during application: Surface must be at least 3°C above dew point. For optimum application, material temperature should be 21–27°C prior to mixing and application.
• Unit size: 20 L pack (Part A volume 20 L).
• Typical unit shipping weight: 23.6 kg for 20 L unit.
• Shelf life: Minimum 24 months at 25°C, subject to reinspection thereafter. Store in dry, shaded conditions away from heat and ignition sources.

Surface preparation and application

Surface preparation

INTERTUF 16 must be applied onto clean, dry, contamination-free substrates in accordance with Worldwide Marine Specifications.

• General cleaning: High-pressure fresh water wash or fresh water wash as appropriate. Remove all oil, grease, soluble contaminants and foreign matter in accordance with SSPC-SP1 solvent cleaning.

Newbuilding

• Remove weld spatter; smooth weld seams and sharp edges where necessary.
• Blast clean weld seams and damaged areas to Sa2½ (ISO 8501-1:2007) or power tool to Pt3 (JSRA SPSS:1984).
• On zinc primers: grit sweep to AS2 (International Paint Sweep Blast Standards) or power tool to Pt3 (JSRA SPSS:1984).

Major refurbishment

• Abrasive blast clean to Sa2½ (ISO 8501-1:2007) or SSPC-SP6.
• If oxidation occurs between blasting and application, reblast to the specified standard.
• Grind, fill or otherwise treat steel defects revealed by blasting.
• For zinc and unapproved shop primers: grit sweep to AS2 or AS3 (International Paint Sweep Blast Standards) or power tool to Pt3 (JSRA SPSS:1984).

Repair

• Prepare bare steel by blasting to Sa2½ (ISO 8501-1:2007) or power tool to at least St2 (ISO 8501-1:2007).
• Remove loose or flaking coatings back to a firm edge.
• Apply INTERTUF 16 overlapping the existing coating by 2–3 cm (approximately 1 inch).

Important: For blasted areas, apply primer before oxidation occurs. If oxidation appears, reblast the entire oxidised area to the specified standard.

INTERTUF 16 can be applied over Intergard 269 provided the primer surface is dry, clean and within the specified overcoating interval. Damaged areas must be prepared to the specified standard (e.g. Sa2½).

For marine use in North America, alternative preparation standards may be used: SSPC-SP10 instead of Sa2½; SSPC-SP3 instead of St3; SSPC-SP2 instead of St2.

Application guidelines

• Mixing: As a one-pack coating, the material must be thoroughly mixed with a power agitator before application.
• Airless spray: Recommended method. Use tip range 0.46–0.66 mm (18–26 thou) with minimum fluid pressure 176 kg/cm² (2500 psi) at the spray tip.
• Brush: Recommended for stripe coats and small areas only. Multiple coats may be needed to reach specified film thickness.
• Roller: Recommended for small areas only. Multiple coats may be needed to reach specified film thickness.
• Conventional spray: Not recommended.
• Thinning: Not recommended. If unavoidable, use International GTA004 up to a maximum of 5% by volume and only where compatible with local environmental legislation.
• Cleaning of equipment: Flush all equipment thoroughly with International GTA004 after use. Partially filled containers may skin or increase in viscosity during storage; filter material before reuse.
• Application conditions: Apply in good weather. Substrate temperature must be at least 3°C above the dew point. For best handling, bring material to 21–27°C before and during application, unless specified otherwise.
• System notes: Optimum performance is achieved when INTERTUF 16 is applied over blasted steel. Shade JAA017 (aluminium) should only be used as the second coat of the system.

Applications and use cases

• Behind linings: Protection of steel surfaces that will be concealed by linings or insulation and are difficult to inspect or maintain after installation.
• Behind pipework: Coating steel located behind or between pipes where access is restricted and a high build, durable coating is required.
• Cofferdams and enclosed spaces: Economic protection of cofferdam steel and similar enclosed or semi-enclosed spaces in marine structures.
• Newbuilding projects: As part of a specified system for protecting enclosed steel during vessel or structure construction.
• Maintenance & repair: Overcoating and repair of existing INTERTUF 16 systems, including localized repairs where breakdown or damage has occurred.
• On-board maintenance: Suitable for professional on-board maintenance teams working in confined or low-access areas, using brush, roller or airless spray as appropriate.

FAQ – INTERTUF 16

1. What type of product is INTERTUF 16?

   It is a one-pack, high build bituminous coating formulated as a solvent-borne paint for interior and exterior steel protection.

2. Where is INTERTUF 16 typically used?

   It is designed for use behind linings, behind pipes and in cofferdams, providing economic protection of enclosed steel at newbuilding, maintenance and repair, and on-board maintenance stages.

3. How is INTERTUF 16 applied?

   The recommended application method is airless spray. Brush and roller may be used for stripe coats and small areas, potentially requiring multiple coats to reach the specified film thickness.

4. What is the recommended dry film thickness?

   The typical dry film thickness is 100 microns per coat, corresponding to approximately 189 microns wet film thickness.

5. What theoretical coverage can I expect?

   At 100 microns DFT, the theoretical coverage is 5.30 m² per litre, before allowing for practical losses due to application and surface profile.

6. How long before I can overcoat INTERTUF 16?

   At 25°C, the minimum overcoating interval with INTERTUF 16 is 8 hours, with an extended maximum period (ext). At 5°C, the minimum is 24 hours; at -5°C, 36 hours; at 35°C, 8 hours.

7. What colours are available?

   INTERTUF 16 is available as JBA016-Black and JAA017-Aluminium. The aluminium version is intended for use as the second coat in the system.

8. Can INTERTUF 16 be applied over a primer?

   Yes. It can be applied over Intergard 269 provided the primer is dry, clean and within its specified overcoating interval, and damaged areas have been prepared to the specified standard.

9. How should I store unopened containers?

   Store sealed containers in a dry, shaded, well-ventilated area at around 25°C, away from heat and ignition sources. Under these conditions, the minimum shelf life is 24 months, subject to reinspection afterwards.

10. Is INTERTUF 16 classified as hazardous?

    Yes. It is classified as a flammable liquid (Flam. Liq. 3, H226), may cause drowsiness or dizziness (STOT SE 3, H336), causes organ damage through prolonged or repeated exposure (STOT RE 1, H372), and is toxic to aquatic life with long-lasting effects (Aquatic Chronic 2, H411).

14. Transport information

INTERTUF 16 is classified as a dangerous good for transport.

• UN number / ID number: UN1263.
• Proper shipping name: PAINT.
• Transport hazard class: Class 3 (flammable liquid).
• Packing group: III.
• Environmental hazards: Classified as environmentally hazardous; marine pollutant component is Naphtha (petroleum), hydrodesulfurized heavy.
• ADR/RID: UN1263, PAINT, Class 3, PG III. Tunnel code (D/E). Environmentally hazardous substance mark not required when transported in pack sizes ≤5 L or ≤5 kg.
• IMDG: UN1263, PAINT, Class 3, PG III. Marine pollutant; marine pollutant mark not required when transported in sizes ≤5 L or ≤5 kg. Emergency schedules: F-E, S-E.
• IATA: UN1263, PAINT, Class 3, PG III. Environmentally hazardous substance mark may appear if required by applicable transport regulations; not required for ≤5 L or ≤5 kg packs.
• General precautions for users: For transport within user premises, always move product in closed, upright and secure containers. Ensure personnel involved in transport know the emergency actions in case of accident or spillage.

8. Personal protection measures

INTERTUF 16 is a solvent-borne, flammable coating. Appropriate controls and personal protective equipment (PPE) are essential when handling and applying the product.

Exposure control and ventilation

• Use only with adequate ventilation. Apply local exhaust ventilation or process enclosures to keep airborne contaminants below recommended or statutory limits and below lower explosion limits.
• Use explosion-proof ventilation and electrical equipment.
• Avoid release of vapors, spray or mist into the workplace atmosphere.

General hygiene measures

• Eating, drinking and smoking should be prohibited in areas where the product is handled, stored or processed.
• Wash hands, forearms and face thoroughly after handling, before breaks and at the end of the shift.
• Remove contaminated clothing and protective equipment before entering eating areas; wash contaminated clothing before reuse.
• Ensure that emergency eye wash stations and safety showers are close to work areas.

Personal protective equipment (PPE)

• Eye/face protection: Use safety eyewear complying with an approved standard, such as safety glasses with side shields, where there is a risk of splashes, mists or vapors.
• Hand protection:
  • Wear chemical-resistant, impervious gloves complying with EN374 or equivalent whenever handling the product.
  • For prolonged or frequently repeated contact, a glove with protection class 6 (breakthrough time > 480 minutes) is recommended; suggested materials: Viton or Nitrile, thickness ≥ 0.38 mm.
  • For brief contact, a glove with protection class ≥ 2 (breakthrough time > 30 minutes) is recommended; suggested material: Nitrile, thickness ≥ 0.12 mm.
  • Replace gloves regularly and immediately if damaged; glove performance may be reduced by chemical or physical damage and poor maintenance.
• Body protection: Select protective clothing based on the specific task and risks, and ensure garments are approved by a safety specialist. Where ignition from static electricity is a risk, use anti-static protective clothing (for example, anti-static overalls, boots and gloves) meeting EN 1149 requirements.
• Other skin protection: Use appropriate protective footwear and additional skin protection measures as required by the task and risk assessment.
• Respiratory protection:
  • Select a respirator that meets relevant standards based on hazard and exposure, and use within a formal respiratory protection programme.
  • For typical application, wear a respirator conforming to EN140 with type A/P2 filter or better when ventilation is insufficient.
  • Dry sanding, flame cutting or welding of the dry paint film generates hazardous dust and fumes; wet sanding or flatting should be used wherever possible. If exposure cannot be controlled by extraction, suitable respiratory protection must be worn.

Handling and safety notes

• Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
• Do not breathe vapors or mist. Avoid contact with eyes, skin and clothing.
• Do not eat, drink or smoke when using this product.
• Repeated exposure may cause skin dryness or cracking.
• This material is toxic to aquatic life with long lasting effects; avoid release to the environment and collect any spillage.

*Contenido generado por IA