Interzinc 2265 Inorganic Zinc-rich Primer is a zinc-rich primer. This zinc powder primer can be used with various high-performance coating systems and topcoats, for new construction and maintenance projects, including bridges, tanks, pipelines and steel structures. A two-component, fast-recoating, fast-drying solvent-borne inorganic silicate zinc-rich primer with a zinc powder content of not less than 65% by weight in the dry film, meeting Level 3 of SSPC Paint 20. The Interzinc 2265 application guide contains further information on expected curing times at low relative humidity. Parameters on this page: dry film thickness 50–75 µm (2–3 mils); theoretical spreading rate 8.40 m²/L; number of components: two.
Source: AKZONOBEL original technical data sheet (TDS) 'Interzinc 2265 Inorganic Zinc-rich Primer'. 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 | 63% |
|---|---|
| Dry Film Thickness | 50–75 µm (2–3 mils) |
| Theoretical Spreading Rate | 8.40 m²/L |
| VOC | 4.08 lb/gal (490 g/L) US EPA Method 24, 24… |
| Density / Specific Gravity | 2.15 kg/L (17.9 lb/gal) |
| Number of Components | Two-component |
| Thinner | Do not exceed the thinning limits of local environmental regulations |
| Mixing Ratio | 5.70 parts : 1 part (by volume) |
| Colour / Appearance | Green-grey, INTERZINC 2265 |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
One of the Interzinc 22 series products.
A two-component, fast-recoating, fast-drying solvent-borne inorganic silicate zinc-rich primer with a zinc powder content of not less than 65% by weight in the dry film, meeting Level 3 of SSPC Paint 20.
Zinc dust complies with ASTM D520, Type II
This zinc dust primer can be used with various high-performance coating systems and topcoats, for new construction and maintenance projects, including bridges, storage tanks, pipelines and steel structures. As a fast-curing primer, it can be used in various climatic conditions.
| Colour | Green-grey, INTERZINC 2265 |
|---|---|
| Gloss | Matt |
| Volume Solids | 63% |
| Typical thickness | Dry film 50–75 µm (2–3 mils), equivalent to wet film 79–119 µm (3.2–4.8 mils) |
| Theoretical Spreading Rate | At 75 µm dry film thickness and the stated volume solids: 8.40 m²/L; at 3 mils dry film thickness and the stated volume solids: 337 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 | 3 h | 18 h | Unlimited¹ |
| 15°C (59°F) | 20 min | 90 min | 9 h | Unlimited¹ |
| 25°C (77°F) | 10 min | 60 min | 4.5 h | Unlimited¹ |
| 40°C (104°F) | 5 min | 30 min | 90 min | Unlimited¹ |
¹ See Definitions and Abbreviations from the International Paint Protective Coatings division. The drying times above are measured at the stated temperatures and 55% relative humidity; at 5 °C they are measured at 60% relative humidity. Before recoating, confirm the film resistance reaches rating 4 by the ASTM D4752 MEK rub test. For recoat details, see the Product Characteristics section.
| Flash point (typical) | Component A 13 °C (55 °F); component B not applicable; after mixing 13 °C (55 °F) |
|---|---|
| Product weight | 2.15 kg/L (17.9 lb/gal) |
| Volatile Organic Compounds | 4.08 lb/gal (490 g/L), US EPA Method 24; 249 g/kg, EU Solvent Emissions Directive (Council Directive 2010/75/EU); coating hazard GB 30981.2-S-Pb≤1000-NC; complies with GB 30981.2-2025. For more details, refer to the 'Product Characteristics' section. |
All surfaces to be painted must be clean, dry and free of contaminants. Before painting, all surfaces must be assessed and prepared in accordance with ISO 8504-1.
Oil and grease must be removed in accordance with the SSPC-SP1 solvent cleaning standard.
Blasting: abrasive blast-clean to Sa 2½ (ISO 8501-1:2007) or SSPC-SP6 (blast-clean to SSPC-SP10 for optimum performance). If oxidation occurs between blasting and application of Interzinc 2265, re-blast the surface to the specified visual standard.
Surface defects exposed during abrasive blasting must be ground, filled or treated by a suitable method.
Recommended surface roughness 40–75 µm (1.5–3.0 mils).
Shop-primed steel: Interzinc 2265 is suitable for application over freshly applied zinc silicate shop primer.
If the zinc dust shop primer shows large-scale scattered breakdown or heavy zinc salts, the entire area must be fully sweep blasted.
Not suitable for recoating other types of shop primer; remove them completely by abrasive blasting.
Welds and damaged areas must be blast cleaned to Sa 2½ (ISO 8501-1:2007) or SSPC-SP6.
Damaged/repair areas: all damaged areas should be blast cleaned to Sa 2½ (ISO 8501-1:2007) or SSPC-SP6. However, small areas may be cleaned with power tools to Pt3 (JSRA SPSS:1984) or SSPC-SP11, provided the area is not polished. Then, apply the recommended epoxy zinc dust primer to
| repair the area | - Consult International Paint for specific advice. |
|---|
| Mixing | Interzinc 2265 is supplied in two packs: liquid base (component A) and zinc powder (component B). Add the zinc powder (component B) slowly to the liquid base (component A) under mechanical agitation. Never add the liquid base to the zinc powder. Strain the paint before application and keep stirring the paint in the pot during spraying. Once mixed, use the paint within the specified pot life. |
|---|---|
| Mixing ratio | 5.70 parts : 1 part (by volume) |
| Pot life | 5°C (41°F) | 15°C (59°F) | 25°C (77°F) | 40°C (104°F) |
| 12 h | 8 h | 4 h | 2 h |
| Suitable for airless spray | Recommended: nozzle diameter 0.38–0.53 mm (15–21 thousandths of an inch); total paint pressure at the nozzle not less than 112 kg/cm² (1593 psi) |
|---|
| Air Spray | Recommended | Spray gun | Graco or Binks |
| Air nozzle | Per the recommendations for each fluid | ||
| (with pressure pot) | Nozzle | Graco E/D, Binks 66.67 | |
| Brush | Applicable — for small-area repair only | Typical thickness 25–50 µm (1.0–2.0 mils) | |
| Roller application | Not recommended | ||
| Thinner | International GTA803 (or | Do not exceed the thinning limits of local environmental regulations |
GTA 415)
| Cleaner | International GTA803 (or GTA 415) |
|---|---|
| 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. |
| Cleaning | All equipment should be cleaned immediately after use with International GTA 803. 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. |
All surplus paint and empty containers must be disposed of in accordance with the appropriate local laws/regulations.
Before recoating, the product must be clean, dry and free of soluble salts and excessive zinc corrosion products.
The temperature of the surface to be coated must be at least 3 °C (5 °F) above the dew point.
When applying Interzinc 2265 in confined spaces, ensure adequate ventilation.
The minimum overcoating interval depends on the relative humidity during curing. Before overcoating, a solvent rub test according to ASTM D4752 is recommended. A test result of 4 indicates satisfactory cure and that overcoating may proceed.
If the relative humidity is below 55%, curing is hindered. Humidity can be increased with steam or water spray, but adding a low-humidity curing accelerator* is more effective. Recoat times at 15 °C (59 °F) are as follows;
| Relative humidity (%) | 20 | 30 | 40 |
| Minimum recoat interval | 24 h | 10 h | |
The Interzinc 2265 application guide contains further information on expected curing times at low relative humidity.
Excessive film thickness or over-application of Interzinc 2265 causes cracking. If cracking occurs, remove the affected areas completely by blasting and recoat per the original coating system.
Apply with care to avoid dry film thickness exceeding 125 µm (5 mils).
Interzinc 2265 without topcoat is not suitable for exposure to acid or alkaline environments or long-term immersion in water.
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.
*Available only in Europe, China, the Middle East, Africa and Russia.
Because of the low film thickness, when recoating with Interzinc 2265, the surface must be a fresh, unweathered film.
The subsequent coat over Interzinc 2265 must have a minimum dry film thickness of 50 µm (2 mils) to ensure good film formation.
Before recoating with a recommended topcoat, ensure Interzinc 2265 is fully cured (see previous section). If weathering has occurred, wash all zinc salts off with fresh water and brush clean with a bristle brush if necessary.
Typical topcoat: Intercure 200
| Intercure 420 | Intergard 251 |
|---|---|
| Intergard 269 | Intergard 345 |
| Intergard 475HS | Interseal 670HS: in some cases, a mist coat of appropriate viscosity is required to reduce bubbling, depending on the age and surface roughness of Interzinc 2265 and the ambient conditions during curing and application. An epoxy sealer such as Intergard 269 can also be used to reduce bubbling. |
For other suitable 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 |
|---|---|
| • Interzinc 2265 | The content of the Application Guide sections is available as separate copies on request |
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 | |
| 10 L | 8.51 L | 10 L | 1.49 L | 12 L |
For other packaging sizes, contact AkzoNobel.
Shipping weight may vary by place of supply; for details, consult International Paint.
| 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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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.
