Interzinc 1065 is a zinc-rich primer. As a zinc-rich primer, it forms part of a coating system and provides corrosion protection for steel substrates in a wide range of industrial environments, including high-value infrastructure projects, offshore equipment, petrochemical and chemical plants, pulp and paper mills, refineries and bridges. A two-component, metallic zinc-rich epoxy primer meeting the composition and requirements of SSPC Paint 20 Level 3 and HG/T 3668, designed for fast curing at low temperatures. Dehumidification, air conditioning and/or heating equipment may be required to control environmental conditions. Parameters on this page: volume solids 69% ± 2%, dry film thickness 80-100 µm (3.2-4 mil), theoretical spreading rate 8.63 m²/L.
Parameter source: AKZONOBEL original technical data sheet (TDS) for Interzinc 1065 Part; spreading rate and other values are converted from TDS parameters and provided for product 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 | 69% ± 2% |
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| Dry Film Thickness | 80-100 µm (3.2-4 mil) |
| Theoretical Spreading Rate | 8.63 m²/L |
| VOC | 2.54 lb/gal (305 g/L) US EPA Method 24 coating… |
| Density / Specific Gravity | 1.84 kg/L (15.4 lb/gal) |
| Number of Components | Two-component |
| Thinner | Normally no thinning is required |
| Mixing Ratio | 2 parts : 1 part (by volume) |
| Colour / Appearance | Grey, INTERZINC 1065 |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
A two-component, metallic zinc-rich epoxy primer meeting the composition and requirements of SSPC Paint 20 Level 3 and HG/T 3668, designed for fast curing at low temperatures. The zinc dust used in Interzinc 1065 meets the requirements of ASTM D520 Type II.
As a zinc-rich primer forming part of a coating system, providing corrosion protection for steel substrates in various industrial environments (including high-value infrastructure projects, offshore installations, petrochemical and chemical plants, pulp and paper mills, refineries and bridges).
| Colour | Grey, INTERZINC 1065 |
|---|---|
| Gloss | Matt |
| Volume Solids | 69% ± 2% |
| Typical thickness | Dry film thickness 80-100 µm (3.2-4 mil), equivalent to wet film thickness 116-145 µm (4.6-5.8 mil) |
| Theoretical Spreading Rate | At 80 µm dry film thickness and the stated volume solids, 8.63 m²/L; at 3.2 mil dry film thickness and the stated volume solids, 346 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) | 20 min | 8 h | Unlimited¹ | |
| 15°C (59°F) | 15 min | 6 h | Unlimited¹ | |
| 25°C (77°F) | 10 min | 4 h | Unlimited¹ | |
| 40°C (104°F) | 5 min | 2.5 h | Unlimited¹ | |
¹ See Definitions and Abbreviations from the International Paint Protective Coatings division.
| Flash point (typical) | Component A 28 °C (82 °F); Component B 24 °C (75 °F); mixed 25 °C (77 °F) |
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| Product weight | 1.84 kg/L (15.4 lb/gal) |
| Volatile Organic Compounds | 2.54 lb/gal (305 g/L) US EPA Method 24 coating hazards GB 30981.2-S-Pb≤1000-NC complies with GB 30981.2-2025. For further details, see the section on Product Characteristics. |
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.
Blast cleaning: blast clean to Sa 2½ (ISO 8501-1:2007) or SSPC-SP6. If oxidation has occurred between blast cleaning and application of Interzinc 1065, the surface must be re-blasted to the specified visual standard.
Surface defects exposed by abrasive blasting must be ground, filled or treated by another suitable method.
Recommended surface roughness 40–75 µm (1.5–3.0 mils).
Steel primed with shop primer: Interzinc 1065 is suitable for steel freshly coated with zinc silicate shop primer.
If the zinc shop primer shows extensive large-scale breakdown or heavy zinc salts, full sweep blasting is required. Other types of shop primer are not suitable for recoating and must be removed completely by blasting.
Welds and damaged areas must be blast cleaned to Sa 2½ (ISO 8501-1:2007) or SSPC-SP6.
Damaged/touch-up areas: all damaged surfaces should be blast cleaned to the original standard, such as Sa 2½ (ISO 8501-1:2007) or SSPC-SP6. However, small areas may be prepared to Pt3 (JSRA SPSS:1984) or SSPC SP 11 by power tool, and polishing is not recommended.
| Mixing | This product is supplied in two containers as one unit. Always mix the entire unit in the specified ratio. 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 | 2 parts : 1 part (by volume) |
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| Pot life | 5°C (41°F) | 15°C (59°F) | 25°C (77°F) | 40°C (104°F) |
| 3 h | 2.5 h | 2 h | 60 min |
| Suitable for airless spray | Recommended: nozzle tip 0.43-0.53 mm (17-21 thou); total paint pressure at the nozzle not less than 191 kg/cm² (2,716 lb/in²). A 9 mm (0.375 in) fluid hose with a maximum length of 15 m (49 ft) is recommended. |
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| Air Spray | Spray gun | DeVibiss or Binks | |
| Air nozzle | Depending on nozzle flow | ||
| (with pressure pot) | Nozzle | DeVibiss D, E or Binks 66.67 | |
| Brush | Applicable — for small-area repair only | Typical thickness 25–50 µm (1.0–2.0 mils) | |
| Roller application | Applicable — for small-area repair only | Typical thickness 25–50 µm (1.0–2.0 mils) | |
| Thinner | International GTA822 | Normally no thinning is required. |
(or GTA 415). In extreme cases, consult the local technical representative.
Do not thin beyond the requirements of local environmental regulations.
| 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 | All equipment shall be cleaned with International thinner immediately after use. Periodic flushing of spray equipment during application is also recommended. The frequency of cleaning depends on the quantity sprayed, temperature and time, including all interruptions. |
All surplus paint and empty containers must be disposed of in accordance with appropriate local regulations/laws.
When Interzinc 1065 is allowed to weather before topcoating, ensure that all zinc salts are removed before painting, and apply the topcoat using only the recommended materials.
When Interzinc 1065 needs to be overcoated with itself due to low dry film thickness, the coating surface must be fresh and unweathered. Any subsequent coat of Interzinc 1065 requires a dry film thickness of at least 50 µm (2 mil) to ensure proper film formation.
Excessive film thickness or over-application of Interzinc 1065 may cause increased gloss and reduced performance. The affected areas must then be completely removed, such as by blasting, and recoated in accordance with the application specification.
In accordance with good painting practice, application should not proceed when conditions are deteriorating, such as when the temperature is below the dew point or condensation is possible. Dehumidification, air conditioning and/or heating equipment may be required to control environmental conditions. The surface temperature must be at least 3 °C (5 °F) above the dew point. If the relative humidity exceeds 85%, application must not proceed.
When applying Interzinc 1065 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.
Interzinc 1065 is normally applied directly to blast-cleaned, clean steel surfaces.
Recommended topcoats/intermediate coats: Intergard 345, Intergard 475HS, Interseal 670HS, Interzone 954. For other suitable topcoats/intermediate coats, consult International.
| 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 for the intended use, consult AkzoNobel for further advice.
| Packaging Specifications | Component A | Component B | ||
| Volume | Packaging | Volume | Packaging | |
| 20 L | 13.33 L | 20 L | 6.67 L | 10 L |
For other packaging sizes, contact AkzoNobel.
| Packaging Specifications | Component A | Component B |
| 20 L | 32.47 kg | 7.64 kg |
| Shelf life | At 25 °C (77 °F), at least 6 months, after which inspection is required. Store in a dry, cool place away from heat sources and ignition sources. |
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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.
