Interdur 8841 Epoxy Resin Paint belongs to epoxy paints. For maintenance, on steel structures prepared by hand tool cleaning and water jetting. A two-component, low volatile organic compound (VOC), high-solids, fast-drying anticorrosive epoxy primer. Where a durable decorative finish with good gloss and colour retention is required, the recommended topcoat shall be applied. Parameters on this page: dry film thickness 75–250 µm (3–10 mil), theoretical spreading rate 6.64 m²/L, number of components two-component.
Parameter source: AKZONOBEL original Technical Data Sheet (TDS) 'Interdur 8841 Epoxy Resin Paint'; values such as spreading rate 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 | 83% |
|---|---|
| Dry Film Thickness | 75–250 µm (3–10 mil) |
| Theoretical Spreading Rate | 6.64 m²/L |
| VOC | 1.81 lb/gal (218 g/L) US EPA Method 24… |
| Density / Specific Gravity | 1.63 kg/L (13.6 lb/gal) |
| Number of Components | Two-component |
| Thinner | Do not thin beyond the limits of local regulations |
| Mixing Ratio | 4 parts : 1 part (by volume) |
| Gloss | Semi-gloss |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
A two-component, low VOC, high solids, fast-drying anti-corrosive epoxy primer.
Zinc phosphate and micaceous iron oxide versions available.
Specifically designed for blast-cleaned steel structures in atmospheric environments. Ideal for medium corrosive environments and where fast drying/fast recoat is required.
For maintenance, on steel surfaces cleaned by hand tool and water jetting.
INTERDUR Colour White and limited other colours 8841
| Gloss | Semi-gloss |
|---|---|
| Volume Solids | 83% |
| Typical thickness | DFT 75–250 µm (3–10 mil) corresponds to WFT 90–301 µm (3.6–12 mil) |
| Theoretical Spreading Rate | 6.64 m²/L at 125 µm dry film thickness and the stated volume solids; 266 ft²/US gal at 5 mil dry film thickness and the stated volume solids |
| Practical Spreading Rate | Allowing for a suitable loss factor |
| Application Methods | Suitable for airless spray, brush, roller. Drying time; recommended topcoat recoat interval |
| Temperature | Surface Dry | Hard Dry | Minimum | Maximum |
| 5°C (41°F) | 6 h | 12 h | Unlimited¹ | |
| 15°C (59°F) | 3 h | 7 h | Unlimited¹ | |
| 25°C (77°F) | 1.5 h | 3.5 h | Unlimited¹ | |
| 40°C (104°F) | 30 min | 1.5 h | Unlimited¹ | |
¹ See Definitions and Abbreviations from the International Paint Protective Coatings division.
| Flash point (typical) | Component A 25 °C (77 °F); Component B 28 °C (82 °F); mixed 30 °C (86 °F) |
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| Product weight | 1.63 kg/L (13.6 lb/gal) |
| Volatile Organic Compounds | 1.81 lb/gal (218 g/L) US EPA Method 24 141 g/kg EC Solvent Emissions Directive Content of Commission Directive 1999/13/EC 172 g/L Chinese National Standard GB 23985. For further details, see the section on Product Characteristics. |
The performance of this product depends on the grade of surface preparation. All surfaces to be coated shall be clean, dry and free from contamination. Before painting, all surfaces shall be assessed and prepared in accordance with GB 18839-2002. Grease, if present, shall be removed by solvent cleaning according to SSPC-SP1.
Remove any oil and grease by solvent cleaning in accordance with GB 18839-2002.
Abrasive blast cleaning to Sa2.5 (GB8923-1:1998). If oxidation of the steel surface occurs after blast cleaning and before application of Interdur 8841, the surface shall be re-blasted to achieve the specified visual surface. Surface defects exposed during blast cleaning shall be ground, filled or treated in an appropriate manner.
Interdur 8841 is suitable for surfaces originally prepared to the above standard by blast cleaning and then naturally degraded for no more than 7 to 10 days under good shop conditions. The surface may degrade to Sa2 standard, but must be free from loose powdery rust.
Surface defects exposed during blasting must be ground, filled or treated by a suitable method.
Interdur 8841 is suitable for application over blast-cleaned surfaces which originally met the above standard but have been allowed to weather for 7–10 days under good shop conditions. At this point the surface has degraded to Sa2, but must be free from loose powdery deposits.
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 | 5°C (41°F) | 15°C (59°F) | 25°C (77°F) | 40°C (104°F) |
| 2.5 h | 2 h | 1 h |
| Suitable for airless spray | Recommended nozzle tip size 0.48–0.66 mm (19–26 thou); total paint pressure at the nozzle not less than 176 kg/cm² (2503 psi) |
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| Brush | Suitable — for small area repair only. Nozzle tip size 0.48–0.66 mm (19–26 mil). Total paint pressure at nozzle not less than 176 kg/cm² (2503 psi). |
| Roller application | Applicable — for small-area repair only | Typical thickness 75–100 µm (3.0–4.0 mils) |
| Thinner | International GTA220. | Do not thin beyond the limits of local regulations. |
| Cleaner | International GTA822 |
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| 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.
Apply by airless spray to achieve the maximum film thickness per coat. Application methods other than airless spray cannot achieve the required film thickness. With air spray, several cross coats are required to achieve the maximum film thickness. At low or high temperatures, special application techniques may be required to achieve the maximum film thickness.
If Interdur 8841 is applied by brush or roller, multiple coats may be required to achieve the specified film thickness.
Spray application can achieve a dry film thickness of 75 µm; thinning with 5% by volume GTA220 is recommended.
The temperature of the surface to be coated must be at least 3 °C (5 °F) above the dew point.
When applying Interdur 8841 in confined spaces, ensure adequate ventilation.
Interdur 8841 is not designed for continuous immersion in water.
Condensation on the surface during or after application will cause loss of gloss and a poor-quality film.
Gloss and surface evenness depend on the application method. Avoid mixing different application methods as far as possible.
As with all epoxy paints, Interdur 8841 will chalk and fade when exposed to the atmosphere. However, this phenomenon will not affect anti-corrosive performance.
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.
Interdur 8841 is normally applied directly to steel, but it may also be applied over the following primers: Interdur 8808, Interdur 8809, Interdur 8810. The following topcoats are recommended for use with Interdur 8841: Interdur 8860, Interdur 8862. For other suitable primers/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 L |
For other packaging sizes, contact AkzoNobel.
| Packaging Specifications | Component A | Component B |
| 20 L | 28.8 kg | 4.3 kg |
| Shelf life | Minimum 18 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.
