Interzone 485 Ultra-high-film Epoxy Resin Paint is an epoxy coating. Interzone 485 is especially suitable for long-term protection of subsea structures, or as a shop- or site-applied coating for cathodically protected hot oil and gas pipelines. An ultra-high-film, high-volume-solids, two-component catalysed epoxy coating applicable at dry film thicknesses up to 3000 µm (120 mils), with high impact, abrasion and adhesion performance. Take care not to over-atomize the product, as over-atomization causes a rough and uneven surface. Parameters on this page: dry film thickness 1000–3000 µm (40–120 mils); theoretical spreading rate 0.99 m²/L; number of components: two.
Source: AKZONOBEL original technical data sheet (TDS) 'Interzone 485 Ultra-high-film Epoxy Resin Paint'. Spreading rate and other values converted from the TDS; for reference only.
The above content is compiled from the manufacturer's datasheet and this site's parameter tables. For selection, coating systems and lead times, pleaseContact Usfor confirmation.
This page carries the full TDS for this product, translated from the manufacturer's original document. No file download is needed; for an original-language copy, send an enquiry.
| Volume Solids | 99% |
|---|---|
| Dry Film Thickness | 1000–3000 µm (40–120 mil) |
| Theoretical Spreading Rate | 0.99 m²/L |
| VOC | 0.25 lb/gal (30 g/L), US EPA Method 24, 38… |
| Density / Specific Gravity | 1.1 kg/L (9.2 lb/gal) |
| Number of Components | Two-component |
| Thinner | International GTA203; thinning must not exceed local environmental regulation limits… |
| Mixing Ratio | 4 parts : 1 part (by volume) |
| Colour / Appearance | Limited range, INTERZONE 485 |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
An ultra-high-film, high-volume-solids, two-component catalysed epoxy coating applicable at dry film thicknesses up to 3000 µm (120 mils), with high impact, abrasion and adhesion performance.
Suitable for application with ordinary airless spray equipment, economical.
High alkali, chemical and petroleum product resistance.
Suitable for protection of steel structures requiring high abrasion resistance and anticorrosive protection in various harsh environments, such as splash zones of offshore oil and gas platforms, dock piles, ship loading/unloading equipment, breakwaters, decks, bridges, chemical plants, paper mills and water treatment plants.
When used with a suitable aggregate, it forms a hard, durable anti-slip deck system. Interzone 485 is very suitable for helidecks and work areas and walkways on offshore structures.
High cathodic disbondment resistance, with good compatibility with sacrificial anode and impressed current systems. Interzone 485 is especially suitable for long-term protection of subsea structures, or as a shop- or site-applied coating for cathodically protected hot oil and gas pipelines. As a tank lining, for loading abrasive slurry,
| Colour | Limited range, INTERZONE 485 |
|---|---|
| Gloss | Semi-gloss |
| Volume Solids | 99% |
| Typical thickness | Dry film thickness 1000–3000 µm (40–120 mils), equivalent to wet film thickness 1010–3030 µm (40.4–121.2 mils) |
| Theoretical Spreading Rate | At 1000 µm dry film thickness and the stated volume solids: 0.99 m²/L; at 40 mils dry film thickness and the stated volume solids: 40 ft²/US gal |
| Practical Spreading Rate | Allowing for a suitable loss factor |
| Application Methods | Airless spray; for drying time refer to the recommended topcoat recoat interval |
| Temperature | Surface Dry | Hard Dry | Minimum | Maximum |
| 10°C (50°F) | 14 h | 72 h | 4 days¹ | |
| 15°C (59°F) | 8 h | 36 h | 3 days¹ | |
| 25°C (77°F) | 4 h | 24 h | 3 days¹ | |
| 40°C (104°F) | 2 h | 12 h | 1 day¹ | |
¹ For recoating with itself, the Interzone 485 recoat interval is suitably extended. Consult International Industrial Coatings for details.
| Flash point (typical) | Component A 32 °C (90 °F); component B 65 °C (149 °F); after mixing 63 °C (145 °F) |
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| Product weight | 1.1 kg/L (9.2 lb/gal) |
| Volatile Organic Compounds | 0.25 lb/gal (30 g/L), US EPA Method 24; 38 g/kg, EU Solvent Emissions Directive (Commission Directive 2010/75); 46 g/L, Chinese national standard GB 23985; coating hazard GB 30981.2-S-Pb≤1000-NC; complies with GB 30981.2-2025. For more details, refer to the 'Product Characteristics' section. |
All surfaces to be coated must be clean, dry and free of contaminants. Before application, all surfaces must be assessed and prepared in accordance with ISO 8504:2019.
For immersion service, Interzone 485 must be applied over surfaces blast-cleaned to Sa 2½ (ISO 8501-1:2007) or SSPC SP10. However, for atmospheric exposure, Interzone 485 should be applied over surfaces blasted to Sa 2½ (ISO 8501-1:2007) or at least SSPC SP6.
Surface defects exposed by blast cleaning must be ground, filled or treated by a suitable method.
The surface profile shall be at least 50 µm (2 mil).
Interzone 485 can be applied over Interline 982. The primer surface must be dry and free of contaminants, and Interzone 485 must be applied within the specified recoat interval (refer to the relevant product data sheet).
| Mixing | This product is supplied in two containers forming one unit. Mix the two components in the specified ratio in one operation. Once mixed, use within the specified pot life. |
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(1) Stir the base (Component A) with a power mixer.
(2) Mix all of the curing agent (Component B) with the base (Component A) and stir thoroughly with a power mixer.
| Mixing ratio | 4 parts : 1 part (by volume) |
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| Pot life | 10°C (50°F) | 15°C (59°F) | 25°C (77°F) | 40°C (104°F) |
| 1 h | 45 min | 30 min |
| Suitable for airless spray | Recommended tip 0.76 mm (30 thousandths of an inch); paint pressure at the nozzle not less than 282 kg/cm² (4010 lb/in²) |
|---|---|
| Air Spray | Not applicable (with pressure pot) |
| Brush | Suitable: for areas smaller than 0.1 m², brushing is possible, but multiple coats are required and thinner addition up to 3% may be needed. |
| Roller application | N/A |
| Thinner | International GTA203. Thinning must not exceed local environmental regulation limits (thin up to 3%) |
| Cleaner | International GTA853 or International GTA203 |
| Interruption of work | Do not leave paint in the hose, spray gun or spray equipment. Flush all equipment thoroughly with International GTA853 (or GTA203). Once a set is mixed, it should not be resealed; if the work interruption is too long, re-mix a fresh set before resuming spraying. |
| Cleaning | Flush all equipment with International GTA853 (or GTA203) immediately after use. Flushing spray equipment periodically during work is good practice. Cleaning frequency depends on spray volume, temperature and usage time, including interruptions. |
Dispose of all leftover paint and empty containers per the applicable local laws/regulations.
Interzone 485 is suitable for use with cathodic protection systems with or without a recommended primer. Interzone 485 is suitable for buried steel structures (Im3 per ISO 12944-2). For specific chemical resistance, contact International Industrial Coatings.
This product does not cure adequately below 5 °C (41 °F). For optimum performance, curing should take place above 10 °C (50 °F).
For high-impact, high-abrasion environments, do not apply a primer, and ensure this product is applied to a surface with a roughness of at least 75 µm (3 mils).
If the film thickness exceeds 2000 µm (80 mils), apply two coats to sufficiently reduce the rough, uneven sawtooth surface.
Beneath Interzone 485, avoid over-applying any primer system. Over-thick primer film can crack when overcoated with Interzone 485.
Below 20 °C (68 °F), a larger pump and nozzle may be required for atomization. Take care not to over-atomize the product, as over-atomization causes a rough and uneven surface.
Ideal application conditions are as follows:
The storage temperature must be 20–30 °C (68–86 °F) to ensure application viscosity.
Remove all line filters.
Thoroughly mix all components as specified, and thin 3% with International GTA203.
Do not use excessive air pressure. Adjust fluid pressure and nozzle size to achieve proper atomization.
The fluid line diameter should be no less than ½ in (13 mm); the 3/8 in (9 mm) whip hose must not be longer than 5 m (16.4 ft).
By adding a suitable aggregate, Interzone 485 can be used as an anti-slip deck system. For details, consult International Industrial Coatings.
Note: the VOC value given is based on the maximum possible value for the product and may vary with colour and general production tolerances.
The following primers can be used with Interzone 485: Interline 982. For other suitable primers, consult International Industrial Coatings.
The following topcoats are recommended for use with Interzone 485: Interfine 629HS, Intergard 740, Interthane 870, Interthane 990, Interthane 990HS, Interzone 485. For other suitable topcoats, consult International Protective Coatings.
| For further information on the industry standards, terms and abbreviations used in this datasheet, see www.international-pc.com | In the following documents on the website: • Definitions and abbreviations • Surface preparation • Coating application • Theoretical and practical spreading rate. These sections are also available as separate publications on request. |
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This product must be applied at the production site by professional applicators in accordance with the recommendations in this manual, the Material Safety Data Sheet and the instructions on the container label. Do not use this product without first reviewing the Material Safety Data Sheet (MSDS) that International Paint provides for its customers.
All work related to the application and use of this product must be carried out in accordance with the relevant national health, safety and environmental standards and regulations.
If welding or flame cutting is required on metal coated with this product, dust and fumes will be generated; use appropriate personal protective equipment and adequate local ventilation.
If in doubt about the suitability of this product for the intended use, consult AkzoNobel for further advice.
| Packaging Specifications | Component A | Component B | ||
| Volume | Packaging | Volume | Packaging | |
| 20 L | 16 L | 20 L | 4 L | |
| 5 US gal | 3 US gal | 5 US gal | 0.75 US gal | 1 US gal |
For other packaging sizes, contact AkzoNobel.
| Packaging Specifications | Component A | Component B |
| 20 L | 19.5 kg | 4.5 kg |
| 5 US gal | 31.5 lb | 9 lb |
| Shelf life | At 25 °C, a minimum of 24 months, after which inspection is required. Store in a dry, cool place away from heat sources and ignition sources. |
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Information is subject to the manufacturer's latest version; the manufacturer's latest TDS prevails.
The technical parameters on this page are taken from the product's original manufacturer technical datasheet, the copyright of which belongs to the manufacturer. If a rights holder considers the presentation inappropriate, contact us for verification and handling.
Packaging specifications and batch lead times are subject to actual availability. PleaseContact Uscontact us for project-based calculation.
