Intergard 291 Epoxy Paint is an epoxy coating. Used as a primer for new construction or industrial maintenance, on suitably prepared surfaces, widely used in offshore installations, petrochemical plants, chemical plants, paper mills and bridges. A two-component epoxy anticorrosive primer. A film of 75 µm (3 mils) dry film thickness can normally be recoated after 6–12 months' exposure (depending on corrosivity), after suitable cleaning and repair of any damaged areas. Parameters on this page: dry film thickness 50–75 µm (2–3 mils); theoretical spreading rate 7.10 m²/L; number of components: two.
Source: AKZONOBEL original technical data sheet (TDS) 'Intergard 291 Epoxy 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 | 53% |
|---|---|
| Dry Film Thickness | 50–75 µm (2–3 mils) |
| Theoretical Spreading Rate | 7.10 m²/L |
| VOC | 362 g/kg, EU Solvent Emissions Directive (Commission Directive 1999/13) ab… |
| Density / Specific Gravity | 1.32 kg/L (11.0 lb/gal) |
| Number of Components | Two-component |
| Thinner | Do not exceed the thinning limits of local environmental regulations |
| Mixing Ratio | 4 parts : 1 part (by volume) |
| Colour / Appearance | Pale yellow, grey, iron oxide red, white, INTERGARD 291 |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
A two-component epoxy anticorrosive primer.
Used as a primer for new construction or industrial maintenance on suitably prepared surfaces, widely used for offshore installations, petrochemical plants, chemical plants, paper mills and bridges.
Its fast drying and handling characteristics, together with long-term recoatability, allow this primer to be applied in the factory before the full system is applied on site. Intergard 291 has good abrasion resistance, reducing mechanical damage during transport between factory and site.
| Colour | Pale yellow, grey, iron oxide red, white, INTERGARD 291 |
|---|---|
| Gloss | Matt |
| Volume Solids | 53% |
| Typical thickness | Dry film thickness 50–75 µm (2–3 mils), equivalent to wet film thickness 94–142 µm (3.8–5.7 mils) |
| Theoretical Spreading Rate | At 75 µm dry film thickness and the stated volume solids: 7.10 m²/L; at 3 mils dry film thickness and the stated volume solids: 283 ft²/US gal |
| Practical Spreading Rate | Allowing for a suitable loss factor |
| Application Methods | Suitable for airless spray, air spray, brush, roller. Drying time; recommended topcoat recoat interval |
| Temperature | Surface Dry | Hard Dry | Minimum | Maximum |
| 10°C (50°F) | 5 h | 24 h | 12 months¹ | |
| 15°C (59°F) | 3 h | 12 h | 16 h | 12 months¹ |
| 25°C (77°F) | 1 h | 4 h | 12 h | 12 months¹ |
| 40°C (104°F) | 30 min | 3 h | 8 h | 12 months¹ |
¹ For more details, refer to the 'Product Characteristics' section
| Flash point (typical) | Component A 23 °C (73 °F); component B 23 °C (73 °F); after mixing 23 °C (73 °F) |
|---|---|
| Product weight | 1.32 kg/L (11.0 lb/gal) |
| Volatile Organic Compounds | 362 g/kg, EU Solvent Emissions Directive (Commission Directive 1999/13). 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 8504:2000.
Oil and grease must be removed in accordance with the SSPC-SP1 solvent cleaning standard.
Blasting: blast-clean to Sa 2½ (ISO 8501-1:2007) or SSPC-SP6. If oxidation occurs between blasting and application of Intergard 291, re-blast the surface to the specified visual standard.
Surface defects exposed by abrasive blasting must be ground, filled or treated by another suitable method.
Welds and damaged areas of shop-primed steel structures must be blast cleaned to Sa 2½ (ISO 8501-1:2007) or SSPC-SP6.
If the shop primer shows large-scale breakdown, the entire area must be blast cleaned.
| 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) |
| 10 h | 8 h | 6 h | 2 h |
| Suitable for airless spray | Recommended nozzle tip size 0.38–0.53 mm (15–21 thou); total paint pressure at the nozzle not less than 155 kg/cm² (2204 psi) |
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| Air Spray | Recommended | Spray gun | DeVilbiss MBC or JGA |
| Air nozzle | 704 or 765 | ||
| (with pressure pot) | Nozzle | E | |
| Brush | Suitable | Typical thickness 40–50 µm (1.6–2.0 mils) | |
| Roller application | Suitable | Typical thickness 40–50 µm (1.6–2.0 mils) | |
| Thinner | International GTA220 (or | Do not exceed the thinning limits of local environmental regulations |
GTA415)
| Cleaner | International GTA822 (or GTA415) |
|---|---|
| Interruption of work | Do not leave paint in hoses, spray guns or spray equipment. Flush all equipment thoroughly with International thinner. |
Mixed paint should not be resealed. If work is interrupted for too long, mix a fresh batch of paint for application.
| Cleaning | All equipment should be cleaned immediately after use with International thinner. Flushing spray equipment periodically during daily work is good practice. Cleaning frequency depends on the volume sprayed, temperature, spraying time, including interruptions, and other factors. |
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Surplus paint and empty containers must be disposed of in accordance with the relevant regional regulations.
Intergard 291 is best used with certain products for some chemical environments, where zinc-containing coatings are attacked by acids and alkalis.
The maximum overcoating interval depends on the integrity of the exposed film. A 75 µm (3 mil) dry film can usually be overcoated after 6–12 months of exposure (depending on the corrosivity of the environment), after suitable cleaning and repair of any damaged areas.
Avoid excessive film thickness, since the adhesion of a topcoat over an aged thick film is not as good as over a film at the specified thickness. When used as a holding primer, avoid excessive film thickness, since intercoat adhesion problems can arise if the subsequent coat is also applied too thickly.
Over-application of Intergard 291 extends the minimum recoat and handling times and adversely affects long-term recoating performance.
When applying Intergard 291 by brush or roller, multiple coats are necessary to reach the specified total system dry film thickness.
This product does not cure adequately below 5 °C (41 °F). For optimum performance, curing should take place above 10 °C (50 °F).
The temperature of the surface to be coated must be at least 3 °C (5 °F) above the dew point.
Like all epoxy resin paints, Intergard 291 chalks and fades when exposed to the atmosphere. However, this does not affect the anticorrosive performance.
Intergard 291 is not designed for continuous immersion in water.
For durable decorative surfaces requiring good gloss and colour retention, overcoat with the recommended topcoat.
Note: VOC values are typical and for guidance only. They may vary with colour and general production tolerances.
Intergard 291 is designed for application over suitably prepared steel, and can also be applied over approved pre-coat primers. Details are available from International Industrial Coatings.
The following primers can be used with Intergard 291: InterH2O 280, Interzinc 12 (a mist coat or tie coat may be required), Interzinc 22 (a mist coat or tie coat may be required), Interzinc 42, Interzinc 52, Interzinc 315. The following topcoats are recommended for use with Intergard 291:
| Intercryl 530 | InterH2O 735 |
|---|---|
| Intercure 420 | Intergard 740 |
| Interfine 629HS | Interplus 770 |
| Intergard 291 | Interplus 880 |
| InterH2O 401 | Interseal 670HS |
| Intergard 475HS | Interthane 990. Other topcoats are available; consult International Industrial 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 L |
For other packaging sizes, contact AkzoNobel.
| Packaging Specifications | Component A | Component B |
| 20 L | 24.6 kg | 4.2 kg |
| Shelf life | At least 12 months at 25 °C (77 °F). Thereafter, inspection is required. Store in a dry, cool environment away from heat and sources of ignition. |
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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.
