Interbond 2340UPC Next-generation Epoxy Phenolic High-temperature Coating belongs to heat-resistant coatings, epoxy coating system. Interbond 2340UPC eliminates the temperature and humidity requirements associated with inorganic zinc coatings, thereby providing better quality and productivity under all climatic conditions. High-temperature pipeline coating, providing corrosion protection in accordance with ISO 12944-9 requirements at ambient temperature, improving production efficiency relative to inorganic zinc silicate and epoxy phenolic systems. After the final coat has cured and dried, the dry film thickness of the coating system shall be measured with a suitable non-destructive magnetic thickness gauge, and the average total thickness of the applied coating system shall be checked. Parameters on this page: dry film thickness 100–200 µm (4–8 mil), theoretical spreading rate 3 m²/L.
Parameter source: AKZONOBEL original technical data sheet (TDS) “Interbond 2340UPC Next-generation Epoxy Phenolic High-temperature Coating”; 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 | 60% |
|---|---|
| Dry Film Thickness | 100–200 µm (4–8 mils) |
| Theoretical Spreading Rate | 3 m²/L |
| VOC | — |
| Density / Specific Gravity | 1.22 kg/L (10.2 lb/gal) Volatile Organic Compounds 3.25 lb… |
| Number of Components | — |
| Thinner | Generally not required except for air spray |
| Mixing Ratio | 3 parts : 1 part (by volume) |
| Colour / Appearance | Grey, pink, olive grey, aluminium. Other colours available by region; see page 3 |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
High-temperature pipeline coating, providing corrosion protection in accordance with ISO 12944-9 requirements at ambient temperature, improving production efficiency relative to inorganic zinc silicate and epoxy phenolic systems.
Based on alkylated amine epoxy technology, Interbond 2340UPC is a next-generation epoxy phenolic coating for high-temperature environments.
External protection of process piping, valves and vessels with operating temperatures between -196 °C (-321 °F) and 230 °C (446 °F).
Suitable for new construction and maintenance and repair, on carbon steel and stainless steel under insulated or uninsulated conditions, and for cryogenic applications.
Due to its excellent high DFT tolerance, Interbond 2340UPC significantly reduces the risk of mud cracking compared with conventional epoxy phenolic coatings.
Interbond 2340UPC eliminates the temperature and humidity requirements associated with inorganic zinc coatings, thereby providing better quality and productivity under all climatic conditions.
Interbond 2340UPC exhibits excellent resistance to "thermal shock" during rapid temperature cycling.
| Colour | Grey, pink, olive grey, aluminium. Other colours available by region; see page 3. |
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INTERBOND 2340UPC Gloss Not applicable
| Volume Solids | 60% |
|---|---|
| Typical thickness | DFT 100–200 µm (4–8 mil) corresponds to WFT 167–333 µm (6.7–13.3 mil) |
| Theoretical Spreading Rate | At 200 µm DFT and the stated volume solids, 3 m²/L At 8 mil DFT and the stated volume solids, 120 ft²/US gal |
| Practical Spreading Rate | Allowing for a suitable loss factor |
| Application Methods | Suitable for airless spray, brush, roller. Drying time; self-recoat interval |
| Temperature | Surface Dry | Hard Dry | Minimum | Maximum |
| -5°C (23°F) | 7 h | 10 h | 14 h | 14 days |
| 10°C (50°F) | 5 h | 8 h | 10 h | 14 days |
| 20°C (68°F) | 4 h | 6 h | 7 h | 14 days |
| 35°C (95°F) | 2 h | 4 h | 10 days | |
| Flash point (typical) | Component A 28 °C (82 °F); Component B 26 °C (79 °F); mixed 28 °C (82 °F) |
|---|---|
| Product weight | 1.22 kg/L (10.2 lb/gal) Volatile Organic Compound 3.25 lb/gal (390 g/L) US EPA Method 24 318 g/kg EC Solvent Emissions Directive Content 2010/75/EC 333 g/L Chinese National Standard GB 23985 Coating Hazardous Substances GB 30981.2-S-Pb≤1000-NC Complies with GB 30981.2-2025 For more detailed information, refer to the section on "Product Characteristics" |
All surfaces to be coated shall be clean, dry and free from contaminants. Prior to coating, all surfaces shall be assessed and prepared in accordance with ISO 8504:2000. Oil and grease shall be removed in accordance with SSPC-SP1 solvent cleaning standard.
New construction To obtain the desired performance and at the new construction stage, Interbond 2340UPC requires application to abrasive blast-cleaned steel to a minimum standard of Sa2½ (ISO 8501-1:2007) or SSPC SP10. An angular surface profile of 50–75 µm (2–3 mil) is recommended. Apply Interbond 2340UPC before oxidation occurs. If oxidation does occur, the entire oxidized area shall be re-blasted to the specified standard. Surface defects exposed during blasting shall be ground, filled or treated in a suitable manner.
For touch-up of small areas and weld areas, power tool cleaning to SSPC SP11 is applicable. Obtaining a minimum profile of 50 µm (2 mil) will achieve better performance.
Maintenance and repair For certain in-service conditions, for planned on-site maintenance and repair, Interbond 2340UPC may be applied to bare steel substrate prepared to at least St2 (ISO 8501-1:2007). For further information, refer to the Application Guide.
Austenitic stainless steel shall be ensured to have a clean, dry surface free from metallic corrosion products prior to painting. Blast treatment with non-metallic and chloride-free abrasive (e.g. aluminium oxide or garnet) to an average profile of 35 µm (1.4 mil).
| 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 | 3 parts : 1 part (by volume) |
|---|
| Pot life | -5°C (23°F) | 10°C (50°F) | 20°C (68°F) | 35°C (95°F) |
| 6 h | 4.5 h | 3 h | 1 h |
| Suitable for airless spray | Recommended Nozzle diameter 0.48–0.6 mm (19–24 thou) Total pressure of paint at the nozzle not less than 211 kg/cm² (3000 psi) |
|---|---|
| Air Spray | Suitable Use suitable dedicated equipment. Use 10% recommended thinner by volume |
| (with pressure pot) | thinner. |
| Air spray (conventional) | N/A |
| 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. | Generally not required, except for air spray. |
| Cleaner | Use a cleaning solvent that complies with local regulations. Consult the local representative for specific recommendations. |
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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. Once mixed, paint should not be resealed; if work is interrupted for too long, mix a fresh batch for application. |
| Cleaning | Clean all equipment immediately after use with International thinner. Flushing spray equipment periodically during application is recommended. Cleaning frequency depends on the volume sprayed, temperature and time, including all interruptions. |
Surplus paint and empty containers must be disposed of in accordance with the relevant local regulations.
This product must be thinned only with the recommended International thinner. Other thinners, especially those containing ketones, severely inhibit the curing of the coating.
Airless spray application. Other application methods, such as brush and roller, may require more than one coat and shall only be used for small areas or repair work.
When Interbond 2340UPC is applied by brush or roller, multiple coats are necessary to achieve the specified total system dry film thickness.
The substrate surface temperature of the steel to be coated must be at least 3 °C (5 °F) above the dew point.
After the final coat has cured and dried, measure the dry film thickness of the coating system with a suitable non-destructive magnetic gauge to check the average total thickness. The coating system shall be free from pinholes and other skips. The cured film shall be free from defects such as runs, sags, drips and inclusions. All defects shall be repaired.
As with all epoxies, Interbond 2340UPC will chalk and "yellow" when in outdoor environments. At elevated temperatures, Interbond 2340UPC will also exhibit significant colour change. However, these phenomena will not affect the anti-corrosion performance, provided the recommended temperature range is not exceeded.
Interbond 2340UPC is suitable for the protection of steel structures under insulation that may be subject to alternating wet and dry cycles, with continuous operating temperatures between -196 °C (-321 °F) and 205 °C (401 °F), and intermittent temperatures up to 230 °C (446 °F). In some regions, for operating temperatures between ambient and 175 °C (347 °F), with intermittent temperatures up to 230 °C (446 °F), the range of available colours is limited; contact AKZONOBEL for more information.
When applying Interbond 2340UPC in confined spaces, ensure adequate ventilation.
Note: VOC values are typical and for guidance only. They may vary with colour and general production tolerances.
Although the low-molecular-weight reactive additive becomes part of the film when cured under normal ambient conditions, analysis by EPA Method 24 shows that it also affects the VOC value.
Interbond 2340UPC is generally suitable for direct application to metallic topcoats and is compatible with a range of topcoats. Suitable topcoats are: Interthane 870 Interthane 990 Intertherm 875 For topcoat compatibility and overcoating intervals, consult International.
The maximum temperature resistance is limited by the topcoat.
| For further information on the industry standards, terms and abbreviations used in this datasheet, see www.international-pc.com | The following documents are available on the website: Interbond 2340UPC Application Guide • 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 | 15 L | 20 L | 5 L | |
| 5 US gal | 3 US gal | 5 US gal | 1 US gal | |
For other packaging sizes, contact AkzoNobel.
| Packaging Specifications | Component A | Component B |
| 20 L | 21.1 kg | 5.2 kg |
| 5 US gal | 36.9 lb | 8.7 lb |
| 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.
© 2026/5/26 AkzoNobel. All rights reserved.
www.international-pc.com
Data is subject to the manufacturer's latest version; in all cases the manufacturer's latest TDS prevails.
Packaging specifications and batch lead times are subject to actual availability. PleaseContact Uscontact us for project-based calculation.
The factory item numbers of Interbond 2340UPC New Generation Epoxy Phenolic High-temperature Coating are as follows.Item No.is the most accurate form when ordering;Colour/colour codecorresponds to the actual colour (RAL, GSB are colour chart codes);Packaging SpecificationsFactory complete-set specification format. Colors not listed may be ordered against the colour card.
| Item No. | Colour / colour code | Packaging Specifications |
|---|---|---|
| HTA340 | Grey | 20 L |
| HTA342 | — | 20 L |
This model has a total of2item numbers, all listed on this page; colours outside the table (including special colours and bulk packaging) can be confirmed by phone, delivery dates are advised according to the factory's current production schedule and stock. In the packaging specification, the "+" indicates the complete-set notation for two-component products (base + curing agent), subject to the factory specification; a "—" in the colour column denotes an auxiliary product, or that the item has no colour code in the factory system.
