What is INTERLINE 399 PART A INDIVISIBLE KIT and why choose it?
INTERLINE 399 PART A INDIVISIBLE KIT from International Marina is the base component of a high performance, highly crosslinked two-component epoxy novolac tank lining. When combined with its curing agent, it provides an internal coating for storage vessels, process vessels and pipe internals, offering excellent resistance to elevated temperatures and a wide range of solvents. Designed for professional and industrial use, it achieves long-term protection in aggressive chemical and high-temperature service up to 130°C (266°F).
Main features
- High performance epoxy novolac system – highly crosslinked tank lining designed for demanding industrial environments.
- Excellent heat resistance – suitable for internal linings operating at temperatures up to 130°C (266°F); for low salinity hot water service, recommended up to 95°C (203°F).
- Strong solvent and chemical resistance – formulated to resist a wide range of chemicals; full resistance achieved after the specified cure schedule.
- Self-priming tank lining – the system is self-priming and is not suitable for application over other primers.
- Single-system overcoating – should only be overcoated with Interline 399 itself.
- High solids content – 67% volume solids for efficient film build and reduced solvent emissions.
- Flexible application methods – can be applied by airless spray, air spray, and, for small areas, by brush or roller (stripe coats and touch-up).
- Professional, industrial formulation – intended exclusively for professional applicators in controlled industrial conditions.
- Specification approvals – approved to DEF STAN 80-97 Annexe G for bulk aviation fuel tanks and Spanish Norma INTA 164402-A.
Technical characteristics
Coating system and performance
- Chemistry: Epoxy novolac, two-component tank lining (Part A base plus curing agent Part B).
- Intended use: Internal lining of storage vessels, process vessels and pipe internals at elevated temperatures up to 130°C (266°F).
- Typical system: Three-coat system at 90 microns (3.6 mils) dry film thickness per coat, giving a total system DFT of 270 microns (10.8 mils).
- Maximum total system DFT: 350 microns (14 mils). The coating system should be free from pinholes and defects.
- Return to service (minimum cure for full chemical resistance):
- 10°C (50°F): 14 days
- 15°C (59°F): 10 days
- 25°C (77°F): 7 days
- 35°C (95°F): 5 days
- 40°C (104°F): 4 days
- Hot water suitability: Suitable for low salinity hot water (e.g. boiler houses) up to 95°C (203°F).
Physical and application data (mixed product)
- Colour: Limited range.
- Gloss level: Not applicable.
- Volume solids: 67%.
- Recommended dry film thickness: 85–125 microns (3.4–5 mils) per coat.
- Typical wet film thickness: 127–187 microns (5.1–7.5 mils).
- Theoretical coverage (at 100 microns DFT and stated volume solids):
- 6.70 m²/litre.
- 269 sq.ft/US gallon at 4 mils DFT.
- Practical coverage: Allow appropriate loss factors.
- Application methods: Airless spray, air spray, brush, roller.
Drying and overcoating (self-overcoating)
- 10°C (50°F): Touch dry 8 h; hard dry 16 h; minimum overcoat 36 h; maximum overcoat 9 days.
- 15°C (59°F): Touch dry 7 h; hard dry 12 h; minimum overcoat 24 h; maximum overcoat 8 days.
- 25°C (77°F): Touch dry 5 h; hard dry 8 h; minimum overcoat 16 h; maximum overcoat 7 days.
- 40°C (104°F): Touch dry 3 h; hard dry 6 h; minimum overcoat 16 h; maximum overcoat 6 days.
Mixing, pot life and equipment
- Mix ratio (by volume): 5.00 parts Interline 399 Part A (base) : 1.00 part curing agent Part B.
- Working pot life (mixed material):
- 10°C (50°F): 5 hours
- 15°C (59°F): 4 hours
- 25°C (77°F): 2 hours
- 40°C (104°F): 1 hour
- Thinner: International GTA220 (thinning normally not required; do not exceed limits set by local environmental legislation).
- Cleaner: International GTA853 or International GTA415.
- Airless spray: Tip range 0.43–0.53 mm (17–21 thou); minimum fluid pressure at tip 176 kg/cm² (2503 psi).
- Conventional air spray: DeVilbiss MBC or JGA gun; air cap 704 or 765; fluid tip E.
- Brush: Suitable for stripe coats only; typical achievable DFT 50–75 microns (2.0–3.0 mils).
- Roller: Not recommended.
Surface preparation and application conditions
- Surface preparation:
- All surfaces must be clean, dry and free from contamination.
- Prepare substrates in accordance with ISO 8504:2000.
- Remove weld spatter; smooth weld seams and sharp edges.
- Degrease in accordance with SSPC-SP1 solvent cleaning.
- Abrasive blast to Sa2½ (ISO 8501-1:2007) or SSPC-SP10 with sharp angular profile 50–75 microns (2–3 mils).
- Apply Interline 399 before steel re-oxidation; if oxidation occurs, reblast affected areas to the specified standard.
- Where regulations allow, surfaces may be primed with Interline 399 thinned 10% GTA220 to 40 microns (1.5 mils) DFT before oxidation.
- Application conditions:
- Steel temperature: not below 10°C (50°F).
- Surface temperature: at least 3°C (5°F) above dew point.
- Relative humidity: not more than 80% during application and cure.
- Ensure good ventilation, especially in confined spaces.
Regulatory and physical data (Part A / mixed product)
- Flash point (typical): Part A 26°C (79°F); Part B 48°C (118°F); mixed 24°C (75°F).
- Product weight (mixed): 1.85 kg/litre (15.4 lb/gal).
- VOC (mixed):
- 2.83 lb/gal (340 g/l) – EPA Method 24.
- 199 g/kg – EU Solvent Emissions Directive (Council Directive 2010/75/EU).
- 312 g/l – Chinese National Standard GB23985.
- Pack sizes (Part A / Part B):
- 20 litre kit: Part A 16.67 litres (packed in 20 litre container); Part B 3.33 litres (packed in 5 litre container).
- 5 US gallon kit: Part A 4.17 US gal (packed in 5 US gal container); Part B 0.83 US gal (packed in 1 US gal container).
- Typical shipping weight:
- 20 litre Part A: 35.7 kg.
- 5 US gal Part A: 71.4 lb.
- Shelf life: Minimum 12 months at 25°C (77°F); subject to re-inspection thereafter. Store in dry, shaded conditions away from heat and ignition sources.
Applications and use cases
- Storage tanks – internal lining of storage vessels handling products requiring high solvent and temperature resistance.
- Process vessels – protection of internal surfaces of process equipment operating at elevated temperatures.
- Pipe internals – lining of pipework where high chemical resistance and temperature performance are needed.
- Bulk aviation fuel tanks – applications covered by DEF STAN 80-97 Annexe G.
- Facilities using low salinity hot water – such as boiler houses, within the stated temperature limits.
FAQ
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Is INTERLINE 399 PART A INDIVISIBLE KIT suitable for external exposure?
The technical data describes Interline 399 as an internal tank lining for storage vessels, process vessels and pipe internals. External exposure is not specified.
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Can Interline 399 be applied over an existing primer?
No. The system is self-priming and is not suitable for application over other primers.
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Can Interline 399 be overcoated with another paint system?
No. Interline 399 should only be topcoated with itself and should never be overcoated with another product.
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What surface preparation standard is required before application?
Steel surfaces must be abrasive blast cleaned to Sa2½ (ISO 8501-1:2007) or SSPC-SP10 with a sharp angular profile of 50–75 microns (2–3 mils).
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What is the recommended total dry film thickness for a full system?
The product is typically specified as a three-coat system at 90 microns per coat, giving 270 microns total DFT. The total system DFT should not exceed 350 microns.
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How long must the coating cure before chemical immersion?
Depending on substrate temperature, the minimum cure time for full chemical resistance is 4–14 days (from 40°C down to 10°C).
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Is thinning required?
Thinning is not normally required. When necessary under extreme conditions, International GTA220 thinner may be used within the limits set by local environmental legislation.
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Who is allowed to use this product?
The product is intended for use only by professional applicators in industrial situations, following all relevant health, safety and environmental regulations.
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What ventilation is required during application?
Good ventilation is essential during application and curing to ensure removal of retained solvent and to keep vapor concentrations within safe limits. Forced extraction is required in confined spaces.
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What should be done with leftover material and empty containers?
Surplus material and empty containers should be disposed of through an approved waste contractor in accordance with regional legislation. Empty containers may retain residues and should be handled as hazardous.
Section 14 – Transport information
- UN number / ID number: UN1263.
- UN proper shipping name: PAINT.
- Transport hazard class: Class 3 (flammable liquid).
- Packing group: III.
- Environmental hazards: Not classified as environmentally hazardous for transport under ADR/RID, IMDG or IATA.
- ADR/RID tunnel code: D/E.
- IMDG emergency schedules: F-E, S-E.
- Special precautions for user: Transport within user’s premises only in closed, upright and secure containers. Ensure personnel transporting the product know what to do in the event of an accident or spillage.
- Transport in bulk according to IMO instruments: Not applicable.
Section 8 – Individual protection measures
The following personal protective equipment (PPE) and controls are based on the Safety Data Sheet for INTERLINE 399 WHITE PART A and are intended for professional users who have assessed the specific risks of their application.
Engineering controls and hygiene
- Use only with adequate ventilation. Employ process enclosures, local exhaust ventilation or other engineering controls to keep airborne concentrations below recommended or statutory limits.
- Use explosion-proof ventilation and equipment in areas where flammable vapors may be present.
- Wash hands, forearms and face thoroughly after handling chemicals and before eating, drinking, smoking or using the lavatory.
- Contaminated work clothing should not be taken outside the workplace and must be washed before reuse.
- Ensure that eyewash stations and safety showers are close to the work area.
Eye and face protection
- Wear safety eyewear complying with an approved standard whenever there is a risk of splashes, mists, gases or dusts.
- Where liquid splash is likely, use chemical splash goggles and/or a face shield.
- If inhalation hazards exist and a full-face respirator is used, it can provide combined respiratory and eye protection.
Hand protection
- Wear chemical-resistant, impervious gloves that comply with an approved standard.
- For prolonged or frequently repeated contact, gloves with protection class 6 (breakthrough time > 480 minutes according to EN374) are recommended. Recommended materials: Viton® or nitrile, thickness ≥ 0.38 mm.
- For brief contact, gloves with protection class 2 or higher (breakthrough time > 30 minutes according to EN374) are recommended. Recommended material: nitrile, thickness ≥ 0.12 mm.
- Replace gloves regularly and immediately if any damage or degradation is observed.
Skin and body protection
- Select body protection (e.g. overalls) based on the specific task and associated risks, and have it approved by a safety specialist.
- Where there is a risk of ignition from static electricity, wear antistatic protective clothing, including antistatic overalls, boots and gloves, in accordance with EN 1149.
- Use appropriate protective footwear and any additional skin protection measures as required by the risk assessment.
Respiratory protection
- Based on the hazard and exposure potential, select a respirator that meets the appropriate standard or certification and use it within a formal respiratory protection programme.
- Where engineering controls cannot maintain safe vapor or mist concentrations, wear a respirator conforming to EN140 fitted with an A/P2 filter or better.
- During dry sanding, flame cutting or welding of the dry film, ensure effective local exhaust ventilation; if exposure cannot be controlled, use suitable respiratory protection.
Environmental exposure controls
- Check emissions from ventilation and process equipment to ensure compliance with environmental protection legislation.
- Where necessary, use fume scrubbers, filters or process modifications to reduce emissions.
*Contenido generado por IA
