Intergard 400 Epoxy MIO High-build Primer is an epoxy coating used as a primer. As an anticorrosive high-build primer/intermediate coat or topcoat in high-performance coating systems, providing excellent barrier protection for harsh environments such as offshore facilities, bridges, chemical plants, petrochemical plants and power stations. Deformed concrete, lifted concrete slabs and prestressed concrete must be mechanically treated, e.g. by blasting, to open the surface pores and remove residual oil, adhesive and other contaminants. For ideal performance, the curing ambient temperature should be above 10 °C (50 °F). Parameters on this page: dry film thickness 100–150 µm (4–6 mil), theoretical spreading rate 5.20 m²/L.
Source: AkzoNobel original technical data sheet (TDS) "Intergard 400 Epoxy MIO High-build Primer"; spreading rate and other values are converted from TDS parameters and are for selection 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 | 65% |
|---|---|
| Dry Film Thickness | 100–150 µm (4–6 mils) |
| Theoretical Spreading Rate | 5.20 m²/L |
| VOC | 2.56 lb/gal (307 g/L) US EPA Method 24 22… |
| Density / Specific Gravity | 1.68 kg/L (14.0 lb/gal) |
| Number of Components | — |
| Thinner | Do not exceed the thinning limits of local environmental regulations |
| Mixing Ratio | 5.67 parts : 1.00 part (by volume) |
| Colour / Appearance | Dark grey, silver-grey, light grey, INTERGARD 400 |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
Deformed concrete, lifted concrete slabs and prestressed concrete must be mechanically treated, e.g. by blasting, to open the surface pores and remove residual oil, adhesive and other contaminants
As an anticorrosive high-build primer/intermediate coat or topcoat in high-performance coating systems, providing excellent barrier protection for harsh environments such as offshore facilities, bridges, chemical plants, petrochemical plants and power stations.
Contains flake micaceous iron oxide, enhancing the barrier effect and improving the long-term recoatability of the coating system, making this product particularly suitable for application in fabrication shops before shipment to site for final coating.
This product is not easily damaged and withstands handling; it can be applied in the factory and re-coated on site, with low surface preparation requirements.
Suitable for new equipment and maintenance of existing structures.
| Colour | Dark grey, silver-grey, light grey, INTERGARD 400 |
|---|---|
| Gloss | Matt |
| Volume Solids | 65% |
| Typical thickness | Dry film 100–150 µm (4–6 mil), equivalent to wet film 154–231 µm (6.2–9.2 mil) |
| Theoretical Spreading Rate | At 125 µm dry film thickness and the stated volume solids, 5.20 m²/L; at 5 mil dry film thickness and the stated volume solids, 209 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) | 6 h | 24 h | Unlimited¹ | |
| 15°C (59°F) | 4 h | 16 h | 20 h | Unlimited¹ |
| 25°C (77°F) | 2 h | 8 h | 12 h | Unlimited¹ |
| 40°C (104°F) | 1 h | 5 h | 8 h | Unlimited¹ |
¹ See Definitions and Abbreviations from the International Paint Protective Coatings division.
| Flash point (typical) | Component A 23 °C (73 °F); Component B 23 °C (73 °F); mixed 25 °C (77 °F) |
|---|---|
| Product weight | 1.68 kg/L (14.0 lb/gal) |
| Volatile Organic Compounds | 2.56 lb/gal (307 g/L) US EPA Method 24. 221 g/kg. EU Solvent Emissions Directive (EU Council Directive 2010/75/EU). Coating hazards: GB 30981.2-S-Pb≤1000-NC. Complies with GB 30981.2-2025. For further details, see 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.
Oil and grease must be removed in accordance with the SSPC-SP1 solvent cleaning standard.
Blast cleaning: blast steel surfaces to Sa 2½ (ISO 8501-1:2007) or SSPC-SP6. If oxidation occurs between blasting and application of Intergard 400, re-blast to the specified visual standard.
Surface defects exposed by blast cleaning must be ground, filled or treated by a suitable method.
Welds and damaged areas of shop-primed substrates shall be blast-cleaned to Sa2½ (ISO 8501-1:2007) or SSPC SP6.
If the shop primer shows large-scale breakdown, the entire area must be blast cleaned.
Zinc-primed substrates: before applying Intergard 400, ensure the primer surface is clean, dry and free from contaminants and zinc salts. Before overcoating, ensure the zinc primer is fully cured.
| 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 | 5.67 parts : 1.00 part (by volume) |
|---|
| Pot life | 10°C (50°F) | 15°C (59°F) | 25°C (77°F) | 40°C (104°F) |
| 8 h | 5 h | 3 h | 2 h |
| Suitable for airless spray | Recommended: nozzle diameter 0.48–0.63 mm (19–25 mil); total paint pressure at the nozzle not less than 176 kg/cm² (2503 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 | Applicable — for small-area repair only | Typical thickness 50–75 µm (2.0–3.0 mils) | |
| Roller application | Applicable — for small-area repair only | Typical thickness 50–75 µm (2.0–3.0 mils) | |
| Thinner | International GTA220 | Do not exceed the thinning limits of local environmental regulations |
| Cleaner | International GTA822 |
|---|---|
| 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.
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.
As with all epoxy coatings, Intergard 400 chalks and fades on exposure to the atmosphere. This does not affect anti-corrosion performance. The actual rate of chalking depends on climatic conditions and is normally limited to a thin surface layer.
Products containing large amounts of micaceous iron oxide tend to form a darker film, so certain colours may require two coats for good hiding, especially with brush and roller application.
This product is generally used as a transport protection coating before on-site recoating. To ensure maximum recoatability, avoid over-application and keep the surface completely clean and free of contaminants, which may lodge in the profile because of the rough nature of the mica iron oxide pigment.
Because micaceous iron oxide roughens the surface, overcoating after ageing is possible. Over-thick application of Intergard 400 forms a smooth resin-rich surface that needs abrading to produce sufficient adhesion for overcoating.
The intercoat adhesion when overcoating aged Intergard 400 is somewhat lower than over fresh coating, but still meets the requirements of the specified use.
For marine environments, the system and recoat intervals may differ.
After consulting the International Paint Protective Coatings division, this paint may be applied by other methods such as flow coating.
Note: VOC values are typical and for guidance only. They may vary with colour and general production tolerances.
The following primers may be used with Intergard 400:
| Intercure 200 | Interzinc 42 |
|---|---|
| Intergard 251 | Interzinc 52 |
| Intergard 269 | Interzinc 72 |
| Interzinc 22* | Interzinc 315 (mist coat and tie coat recommended). *Suitable topcoats are: |
| Intergard 400 | Interseal 670HS |
| Intergard 410 | Interthane 990 |
| Intergard 475HS | Interthane 990E, Intergard 740. For other suitable primers/topcoats, consult International Paint. |
| 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 | 17 L | 20 L | 3 L | 5 L |
For other packaging sizes, contact AkzoNobel.
| Packaging Specifications | Component A | Component B |
| 20 L | 32.8 kg | 3.3 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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The information given in this product data sheet is not exhaustive. Anyone who uses, for any purpose, any product other than those specifically recommended in this data sheet without first obtaining our written confirmation does so at their own risk as regards the suitability of the product for the intended purpose. Although to the best of our knowledge all advice or statements given about the product (whether in this data sheet or otherwise) are correct, we cannot control the quality or condition of the substrate, nor the many factors affecting the use and application of the product. Accordingly, unless we specifically agree otherwise in writing, we accept no liability, to the maximum extent permitted by law, for any product performance problem arising, or for any loss or damage caused by use of the product. We hereby disclaim any warranty or representation, express or implied, arising by operation of law or otherwise, including but not limited to any implied warranty of merchantability or fitness for a particular purpose. All products supplied and all technical guidance provided are subject to our standard terms and conditions of sale. You should obtain a copy of this document and read it carefully. The information contained in this product data sheet may be amended at any time in the light of experience and of our product development policy. Before using the product, it is the customer's responsibility to check with the local representative that the data sheet in their possession is the latest version.
This product data sheet is available on www.international-marine.com or www.international-pc.com and should be identical to this copy. If the version on the website differs from this one, the version on the website shall prevail.
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*All registered trademarks mentioned in this publication are licensed to or owned by the AkzoNobel group.
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Packaging specifications and batch lead times are subject to actual availability. PleaseContact Uscontact us for project-based calculation.
