Interfine 629HS is an acrylic coating used as a topcoat. Widely used in various aggressive environments including offshore structures, petrochemical installations, bridges, paper mills and power plants. A low-VOC, high-performance, two-component, isocyanate-free, acrylic crosslinking topcoat with good colour and gloss retention. If severe chemical or solvent splash is likely, contact International Industrial Coatings for suitability information. Parameters on this page: volume solids 65% ± 3% (depending on colour); theoretical spreading rate 13 m²/L; number of components: two.
Source: AKZONOBEL original technical data sheet (TDS) 'Interfine 629HS'. 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 | 65% ± 3% (depending on colour) |
|---|---|
| Dry Film Thickness | — |
| Theoretical Spreading Rate | 13 m²/L |
| VOC | 2.80 lb/gal (336 g/L), US EPA Method 24, 212… |
| Density / Specific Gravity | 1.55 kg/L (12.9 lb/gal) |
| Number of Components | Two-component |
| Thinner | Do not exceed the thinning limits of local environmental regulations |
| Mixing Ratio | 7 parts : 1 part (by volume) |
| Gloss | High gloss |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
A low-VOC, high-performance, two-component, isocyanate-free, acrylic crosslinking topcoat with good colour and gloss retention.
Designed as a topcoat for new construction and industrial maintenance. Widely used in various aggressive environments including offshore structures, petrochemical installations, bridges, paper mills and power plants.
629HS
| Gloss | High gloss |
|---|---|
| Volume Solids | 65% ± 3% (depending on colour) |
| Typical thickness | A 50 µm (2 mils) dry film is equivalent to a 77 µm (3.1 mils) wet film |
| Theoretical Spreading Rate | 13 m²/L at 50 µm dry film thickness and the stated volume solids; 521 ft²/US gal at 2 mil dry film thickness and the stated volume solids |
| Practical Spreading Rate | Allowing for a suitable loss factor |
| Application Methods | Airless spray, air spray, brush, roller; for drying time refer to the self-recoat interval |
| Temperature | Surface Dry | Hard Dry | Minimum | Maximum |
| 10°C (50°F) | 2 h | 30 h | Unlimited¹ | |
| 15°C (59°F) | 90 min | 24 h | Unlimited¹ | |
| 25°C (77°F) | 60 min | 18 h | Unlimited¹ | |
| 40°C (104°F) | 45 min | 6 h | Unlimited¹ | |
¹ See Definitions and Abbreviations from the International Paint Protective Coatings division.
| Flash Point | Component A 32 °C (90 °F); component B 40 °C (104 °F); after mixing 40 °C (104 °F) |
|---|---|
| Product weight | 1.55 kg/L (12.9 lb/gal) |
| Volatile Organic Compounds | 2.80 lb/gal (336 g/L), US EPA Method 24; 212 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.
Primed surfaces: Interfine 629HS should always be applied over a recommended anti-corrosive primer. The primer surface must be dry and free of contaminants, and Interfine 629HS must be applied within the specified recoat interval (refer to the relevant product data sheet).
Cracked or damaged areas should be prepared to the specified standard (e.g. Sa 2½ (ISO 8501-1:2007) or SSPC SP6 abrasive blasting, or SSPC SP11 power tool cleaning), and the primer repaired before applying Interthane 990.
| 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 | 7 parts : 1 part (by volume) |
|---|
| Pot life | 10°C (50°F) | 15°C (59°F) | 25°C (77°F) | 40°C (104°F) |
| 10 h | 5 h | 2 h | 1 h |
| Airless Spray | Recommended nozzle tip 0.32–0.48 mm (13–19 thousandths of an inch); total paint pressure at the nozzle not less than 155 kg/cm² (2204 lb/in²) |
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| Air Spray | Recommended | Spray gun | DeVilbiss MBC or JGA |
| (with pressure pot) | Air nozzle | 704 or 765 | |
| Nozzle | E | ||
| Air spray (conventional) | Applicable | Use suitable dedicated equipment. | |
| Brush | Applicable | Typical thickness 40–50 µm (1.6–2.0 mils) | |
| Roller application | Applicable | Typical thickness 40–50 µm (1.6–2.0 mils) | |
| Thinner | International GTA220 | Do not exceed the thinning limits of local environmental regulations |
(or International GTA415)
| Cleaner | International GTA822 or International GTA415 |
|---|---|
| Interruption of work | Do not leave paint in the hose, spray gun or spray equipment. Flush all equipment thoroughly with International GTA822. Mixed paint should not be resealed; if the work interruption is too long, mix a fresh batch of paint for application. |
| Cleaning | All equipment should be cleaned immediately after use with International GTA822. 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. |
Surplus paint and empty containers must be disposed of in accordance with the relevant regional regulations.
Gloss and surface finish depend on the application method. Mixing different application methods should be avoided as far as possible. A consistent application method gives the best results. Conventional air spray always gives the best gloss and appearance.
With brush and roller, for some colours two coats of Interfine 629HS may be required for uniform hiding. This is especially true with lead-free bright colours such as orange and yellow. The ideal practice is to use a colour-matched intermediate or anti-corrosive coat beneath Interfine 629HS.
When recoating after weathering or ageing, ensure the coating is thoroughly cleaned of all surface contaminants such as oil, grease, crystalline salt and road grime before applying subsequent Interfine 629HS coats.
This product does not cure adequately below 5 °C (41 °F). For optimum performance, curing should take place above 10 °C (50 °F).
Condensation during or immediately after application causes a dull surface and a poor film.
Premature exposure to standing water may cause colour change, especially for dark colours and at low temperatures.
When applying Interfine 629HS in confined spaces, ensure adequate ventilation.
This product is not recommended for immersion service. If severe chemical or solvent splashes are likely, contact International Paint for information on suitability.
Note: VOC values are typical and for guidance only. They may vary with colour and general production tolerances.
The following primers/intermediate coats are recommended for use with Interfine 629HS:
| Intercure 200 | Interplus 356 |
|---|---|
| Intercure 420 | Interseal 670HS |
| Intergard 251 | Interzinc 52 |
| Intergard 269 | Interzone 505 |
| Intergard 475HS | Interzone 1000 |
| Interplus 256 | Interzone 954. Interfine 629HS is suitable for recoating with itself. |
For more information on other primers/intermediate coats, consult International Industrial Coatings.
| For further information on the industry standards, terms and abbreviations used in this datasheet, see www.international-pc.com | Available in the following documents on the website: • Definitions and Abbreviations • Surface Preparation • Coating Application • Theoretical and Practical Spreading Rates. Separate copies of these sections are available on request. |
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This product is intended for application only by professional applicators in the industrial sector, in accordance with the recommendations in this manual, the Material Safety Data Sheet and on the container packaging. 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 | Component A | Component B | ||
| Volume | Packaging | Volume | Packaging | |
| 20 L | 17.5 L | 20 L | 2.5 L | |
| 5 US gal | 4.36 US gal | 5 US gal | 0.63 US gal | 1 US gal |
For other available packaging sizes, contact International Paint.
| Packaging Specifications | Component A | Component B |
| 20 L | 30.1 kg | 3 kg |
| 5 US gal | 62.2 lb | 6.4 lb |
| 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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: 2011/12/1 © 2011/12/1 AkzoNobel. All rights reserved.
International and all products mentioned in this document are trademarks of AkzoNobel or trademarks authorised by AkzoNobel.
www.international-pc.com
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.
