Interline 944 Anti-corrosion Economical Coating is an epoxy paint. Suitable for storing a wide range of products, including solvents, crude oil, white refined products, aviation fuel, aqueous solutions, fresh and sea water, and caustic soda. A two-component thin-film epoxy solvent-borne tank lining. Although the low-molecular-weight reactive co-reactant becomes part of the film when cured under normal ambient conditions, analysis by EPA Method 24 has shown that it also affects the VOC value. Parameters on this page: dry film thickness 100–150 µm (4–6 mils), theoretical spreading rate 4.64 m²/L, number of components: two.
Data source: AKZONOBEL original Technical Data Sheet (TDS), "Interline 944 Anti-corrosion Economical Coating"; spreading rate and other values are converted from the TDS parameters, 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 | 58% |
|---|---|
| Dry Film Thickness | 100–150 µm (4–6 mils) |
| Theoretical Spreading Rate | 4.64 m²/L |
| VOC | 3.42 lb/gal (410 g/L) US EPA Method 24 44… |
| Density / Specific Gravity | 1.50 kg/L (12.5 lb/gal) |
| Number of Components | Two-component |
| Thinner | International GTA220 (or Internatio… |
| Mixing Ratio | 5.67 parts : 1.00 part (by volume) |
| Colour / Appearance | Pink, white, INTERLINE 944 |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
A two-component thin-film epoxy solvent-borne tank lining.
An economical anti-corrosion coating product for the interiors of steel tanks and containers.
Suitable for storing a wide range of products, including solvents, crude oil, white refined products, aviation fuel, aqueous solutions, fresh and sea water, and caustic soda.
| Colour | Pink, white, INTERLINE 944 |
|---|---|
| Gloss | N/A |
| Volume Solids | 58% |
| Typical thickness | Dry film thickness 100–150 µm (4–6 mils), equivalent to wet film thickness 172–259 µm (6.9–10.4 mils) |
| Theoretical Spreading Rate | At 125 µm dry film thickness and the stated volume solids, 4.64 m²/L; at 5 mil dry film thickness and the stated volume solids, 186 sq ft/US gal |
| Practical Spreading Rate | Allowing for a suitable loss factor |
| Application Methods | Suitable for airless spray, air spray, brush, roller. Drying time; self-recoat interval |
| Temperature | Surface Dry | Hard Dry | Minimum | Maximum |
| 10°C (50°F) | 10 h | 24 h | 48 h | 28 days |
| 15°C (59°F) | 7 h | 16 h | 36 h | 28 days |
| 25°C (77°F) | 3 h | 8 h | 24 h | 28 days |
| 40°C (104°F) | 1 h | 3 h | 12 h | 14 days |
| Flash point (typical) | Component A 25 °C (77 °F); Component B 23 °C (73 °F); mixed 24 °C (75 °F) |
|---|---|
| Product weight | 1.50 kg/L (12.5 lb/gal) |
| Volatile Organic Compounds | 3.42 lb/gal (410 g/L) US EPA Method 24; 440 g/L UK - PG6/23(04), Appendix 3. For more details, see the "Product Characteristics" section. |
All surfaces to be coated must be clean, dry and free of contaminants. Before painting, all surfaces must be assessed and prepared in accordance with ISO 8504:2000.
Where required, remove weld spatter and grind welds and sharp edges smooth.
Oil and grease must be removed in accordance with the SSPC-SP1 solvent cleaning standard.
When the surface is blast cleaned to Sa 3 (ISO 8501-1:2007) or SSPC-SP5, Interline 944 achieves better performance. When Enviroline 58HS is not used in high-temperature and/or harsh environments, the minimum surface preparation requirement Sa 2½ (ISO 8501-1:2007) or SSPC-SP10 may be accepted. Contact International Paint Protective Coatings for more information.
Recommended surface roughness 50–75 µm (2–3 mils).
Interline 944 must be applied before the steel surface oxidises. If oxidation does occur, the entire oxidized area should be re-blasted to the above standard.
Interline 982 keeps the blast standard on tank interiors in a semi-protected environment for up to 28 days. If moisture is present on the surface, oxidation occurs and re-blasting is required.
Welds and damaged areas of shop-primed steel structures shall be blast cleaned to Sa 2½ (ISO 8501-1:2007) or SSPC-SP10.
If the shop primer shows large-area damage or extensive scattered damage, full brush-off blast cleaning may be required.
| Mixing | Interline 944 must be applied in accordance with the Interline 944 coating system manual and the detailed operating procedures for tank lining application of International's Protective Coatings division. |
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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.
(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) |
| 10 h | 8 h | 6 h | 3 h |
| Suitable for airless spray | Recommended nozzle tip size 0.53–0.68 mm (21–27 thou); 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 | Suitable for small areas | Usually achieves 2.0–3.0 mil (50–75 microns) | |
| Roller application | Suitable for small areas | Typical thickness 50–75 µm (2.0–3.0 mils) |
| Thinner | International GTA220 (or International GTA415) |
|---|---|
| Cleaner | International GTA853 (or International GTA415) |
| Interruption of work | Paint must not be left in hoses, spray guns or spray equipment. Flush all equipment thoroughly with International GTA853. Once mixed, paint should not be resealed; if the work interruption is too long, prepare fresh paint before restarting application. |
| Cleaning | Clean all equipment with GTA853 immediately after use. Periodically flushing spray equipment during the daily work is good practice. The frequency of cleaning depends on the quantity sprayed, temperature and elapsed time, including delays. |
All surplus paint and empty containers must be disposed of in accordance with the appropriate local regulations/laws.
Consult the detailed recommended tank lining process before use. Interline 944 is generally specified as a 2-coat system, each coat 125 µm (5 mils) thick, with a total system dry film thickness of 250 µm (10 mils). The exact system for this total dry film thickness depends on the requirements of the final use. Consult International Paint for specific recommendations on tank lining application.
To achieve the maximum film thickness in one coat, airless spray is the ideal method. Application methods other than airless spray cannot achieve the required film thickness. With conventional air spray, several cross coats are required to achieve the maximum film thickness. Brush and roller are recommended for small areas only.
The temperature of the surface to be coated must be at least 3 °C (5 °F) above the dew point.
Do not apply when the steel temperature is below 10 °C (50 °F).
The relative humidity during application and curing shall not exceed 80%.
Unacceptably low temperature and/or high humidity during or immediately after application leads to incomplete curing and surface contamination, compromising intercoat adhesion.
To achieve maximum resistance, wait until the film is fully cured. Curing is affected by humidity, temperature and film thickness. Normally, after 7–10 days at 25 °C (77 °F) and 50% humidity, a fully cured dry film thickness of 250 µm (10 mils) can be obtained, achieving ideal chemical resistance. Curing time decreases at higher temperatures and increases at lower temperatures. Note: VOC values are typical values for guidance only. The values may vary depending on colour differences 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.
Interline 944 can be applied directly over correctly prepared bare steel. It is also suitable for application over the following primers: Interline 982. Interline 944 should only be overcoated with itself and should never be overcoated with other products.
Consult International Paint to ensure Interline 944 is suitable for contact with the product to be stored.
| 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 | Component A | Component B | ||
| Volume | Packaging | Volume | Packaging | |
| 20 L | 17 L | 20 L | 3 L | 5 L |
| 5 US gal | 4.25 US gal | 5 US gal | 0.75 US gal | 1 US gal |
For other available packaging sizes, contact International Paint.
| Packaging Specifications | Component A | Component B |
| 20 L | 29.4 kg | 3.4 kg |
| 5 US gal | 57.3 lb | 6.2 lb |
| Shelf life | At least 12 months at 25 °C (77 °F). Thereafter, inspect before use. |
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Store in a dry, cool environment away from heat and sources of ignition.
© 2017/2/22 AkzoNobel. All rights reserved.
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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.
