Intertherm 79 Modified Synthetic Resin Heat-resistant Primer is a heat-resistant coating. It provides short-term protection against corrosion of steel during fabrication, transport and erection of steel structures. When heated, the paint decomposes into inert residues and a minimum of organic condensate evaporation products. As heating reduces the inert residues formed on the coating surface and releases only a minimal amount of organic condensation products into the atmosphere, Intertherm 79 can be used on flues, pipes and chimneys without affecting filtration systems. Parameters on this page: theoretical spreading rate 8.30 m²/L, number of components one.
Source: AkzoNobel original technical data sheet (TDS) "Intertherm 79 Modified Synthetic Resin Heat-resistant 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 | 50% |
|---|---|
| Dry Film Thickness | — |
| Theoretical Spreading Rate | 8.30 m²/L |
| VOC | 3.67 lb/gal (440 g/L) US EPA Method 24 29… |
| Density / Specific Gravity | 1.50 kg/L (12.5 lb/gal) |
| Number of Components | One-component |
| Flash Point | 27°C (81°F) |
| Thinner | Do not exceed the thinning limits of local environmental regulations |
| Colour / Appearance | Red, white, INTERTHERM 79 |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
A one-component, fast-drying primer based on a special modified synthetic resin. When heated, the paint decomposes into inert residues and a minimum of organic condensate evaporation products.
Provides short-term protection against corrosion of steel during fabrication, transport and erection of steel structures. Intended mainly for heat-resistant components such as pipework, boilers, flues, chimneys and pipelines.
These properties enable the product to be used in combustion areas of power stations.
| Colour | Red, white, INTERTHERM 79 |
|---|---|
| Gloss | Matt |
| Volume Solids | 50% |
| Typical thickness | 60 (2.4 mil) is equivalent to 120 (4.8 mil) wet film |
| Theoretical Spreading Rate | At 60 µm dry film thickness and the stated volume solids, 8.30 m²/L; at 2.4 mil dry film thickness and the stated volume solids, 334 ft²/US gal |
| Practical Spreading Rate | Allowing for a suitable loss factor |
| Application Methods | Suitable for airless spray, air spray. Drying time; recommended topcoat recoat interval |
| Temperature | Surface Dry | Hard Dry | Minimum | Maximum |
| 5°C (41°F) | 30 min | 40 min | N/A | |
| 15°C (59°F) | 20 min | 30 min | N/A | |
| 25°C (77°F) | 15 min | 25 min | N/A | |
| 40°C (104°F) | 10 min | 20 min | N/A | |
| Flash point (typical) | 27°C (81°F) |
|---|---|
| Product weight | 1.50 kg/L (12.5 lb/gal) |
| Volatile Organic Compounds | 3.67 lb/gal (440 g/L) US EPA Method 24. 297 g/kg. EU Solvent Emissions Directive, 1999 Commission Directive No. 13. For further details, see the "Product Characteristics" section. |
All surfaces to be coated shall be clean, dry and free from contamination. Before painting, all surfaces shall be assessed and treated in accordance with ISO 8504:2004. Oil and grease shall be removed in accordance with SSPC-SP1 solvent cleaning.
Intertherm 79 may be applied to smooth solvent-cleaned surfaces or blast-cleaned surfaces. Application on blast-cleaned surfaces provides better corrosion protection.
| Mixing | This product is a single-component coating; stir thoroughly with a power mixer before each use |
|---|---|
| Suitable for airless spray | Recommended: nozzle diameter 0.33–0.45 mm (13–18 mil), total paint pressure at the nozzle not less than 141 kg/cm² (2005 psi) |
| Air Spray | Recommended | Spray gun | DeVilbiss MBC or JGA |
| (with pressure pot) | Air nozzle | 704 or 765 | |
| Nozzle | E | ||
| Air spray (conventional) | Recommended | Use suitable dedicated equipment. | |
| Brush | Applicable — for small-area repair only | ||
| repair | |||
| Roller application | Applicable — for small-area repair only | ||
| Thinner | Supplement International GTA007 | Do not exceed the thinning limits of local environmental regulations |
| Cleaner | International GTA007 |
|---|---|
| Interruption of work | Flush all equipment thoroughly with International GTA007. Store all unused paint in closed containers. After storage, partially filled containers may develop surface skinning and/or increased viscosity. Strain the paint before use. |
| Cleaning | All equipment should be cleaned immediately after use with International GTA 007. Flushing spray equipment periodically during daily work is good practice. Cleaning frequency depends on the volume sprayed, temperature, spraying time, including delays, and other factors. |
All surplus paint and empty containers must be disposed of in accordance with the relevant local laws/regulations.
Intertherm 79 is specially designed as temporary corrosion protection during fabrication, installation and erection of steel structures. It is particularly useful where the steel will be exposed to high temperatures in service. As heating reduces the inert residues formed on the coating surface and releases only a minimal amount of organic condensation products into the atmosphere, Intertherm 79 can be used on flues, pipes and chimneys without affecting filtration systems.
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.
At low temperatures, Intertherm 79 may need to be thinned to allow airless spray application. Thinning with 10% (by volume) International GTA007 normally achieves this satisfactorily.
The temperature of the surface to be coated must be at least 3 °C (5 °F) above the dew point.
When applying Intertherm 79 in confined spaces, ensure adequate ventilation.
The product is not suitable for severe corrosive environments, or heavily pitted or contaminated steel.
Intertherm 79 is not designed for continuous immersion in water.
Note: VOC values are typical and for guidance only. They may vary with colour and general production tolerances.
In most cases, this product is applied directly to steel without overcoating.
| 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, consult International Paint.
| Packaging Specifications | ||
| Volume | Packaging | |
| 20 L | 20 L |
For other available packaging sizes, contact International Paint.
Packaging Specifications
| 20 L | 31.9 kg |
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| Shelf life | At least 12 months at 25 °C (77 °F). Thereafter, inspect before use. |
|---|
Store in a dry, cool environment away from heat and sources of ignition.
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.
:2015/7/30 ©2015/7/30 AkzoNobel, all rights reserved.
All registered trademarks mentioned in this publication are licensed to or owned by AkzoNobel.
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Packaging specifications and batch lead times are subject to actual availability. PleaseContact Uscontact us for project-based calculation.
