Interzinc 22 - QHA285 Inorganic Zinc-Rich Primer is a zinc-rich primer. Used as the first coat of various organic coating systems in above-water areas, greatly improving anticorrosive performance. Provides excellent corrosion resistance on properly prepared steel substrates. Parameters on this page: volume solids 63% ± 2%, dry film thickness 75 µm, theoretical spreading rate 8.40 m²/L. Comparable models from the same brand: Interbond 201 - Temperate epoxy primer, Interbond 808 epoxy anticorrosive paint, Intergard 5101 epoxy universal primer.
Parameter source: INTERNATIONAL original technical data sheet (TDS) for Interzinc 22 - QHA285 Inorganic Zinc-Rich Primer; 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 | 63% ± 2% |
|---|---|
| Dry Film Thickness | 75 µm |
| Theoretical Spreading Rate | 8.40 m²/L |
| VOC | 470 g/L (as supplied) (EPA Method 24); 220 g/kg (… |
| Density / Specific Gravity | — |
| Number of Components | Two-component |
| Mixing Ratio | Component A : Component B = 3.1:1 (by volume) |
| Colour / Appearance | QHA285 - green-grey; QHA286 - grey - available in Korea only |
| Gloss | N/A |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
A two-component, solvent-borne, ethyl silicate zinc-rich primer. The dry film contains 85% zinc (by weight). Provides excellent corrosion resistance on properly prepared steel substrates.
Used as the first coat of various organic coating systems in above-water areas, greatly improving anticorrosive performance.
For newbuilding or maintenance and repair.
| Colour | QHA285 - green-grey; QHA286 - grey - available in Korea only. |
|---|---|
| Topcoat/gloss | N/A |
| Component B (curing agent) | QHA027 (zinc powder) |
| Volume Solids | 63% ±2% (ISO 3233:1998) |
| Mixing ratio | Component A : Component B = 3.1:1 (by volume) |
| Standard film thickness | 75 µm dry film thickness (119 µm wet film thickness) |
| Theoretical Spreading Rate | At 75 µm dry film thickness, the theoretical spreading rate is 8.40 m²/L, allowing appropriate loss factors |
| Application Methods | Airless spray, brush, conventional spray, roller |
| Flash Point | Component A 14 °C; Component B not applicable; mixed 14 °C |
| Induction Time | Not required |
| Drying data | 5°C | 15°C | 25°C | 35°C |
| Touch dry [ISO 9117/3:2010] | 30 min | 20 min | 10 min | 7 min |
| Hard dry [ISO 9117-1:2009] | 3 h | 90 min | 60 min | 30 min |
| Pot life after mixing | 12 h | 8 h | 4 h | 2 h |
| Recoat data — see the “Limitations” section | Substrate Temperature | |||||||
| 5°C | 15°C | 25°C | 35°C | |||||
| When recoating the following products | Minimum | Maximum | Minimum | Maximum | Minimum | Maximum | Minimum | Maximum |
| Intergard 269 | 18 h | Unlimited | 9 h | Unlimited | 4.5 h | Unlimited | 1.5 h | Unlimited |
h h
| Note | Recoating data depends on ambient conditions (see the Limitations section). The stated data are measured at the given temperature and 65% relative humidity. Before recoating, a MEK solvent rub test (ASTM D4752) should be carried out; a result of 4 indicates suitable curing for recoating. |
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| Volatile Organic Compounds | 470 g/L (as supplied) (EPA Method 24); 220 g/kg (as-supplied liquid paint). EU Solvent Emissions Directive (Commission Directive 1999/13/EC). Volatile organic compound values are typical and provided for reference only. They may vary with factors such as colour and normal manufacturing tolerances. |
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For the paint system best suited to the surface to be protected, consult your local International Paint representative.
Applied in accordance with the standard Worldwide Marine Specifications.
All surfaces to be coated must be clean, dry and free of contaminants.
Wash with high-pressure or ordinary fresh water as appropriate, and remove all oil, grease, soluble contaminants and other foreign matter in accordance with the SSPC-SP1 solvent cleaning standard.
Newbuildings: Interzinc 22 can be applied over freshly coated zinc silicate shop primer. Consult International Paint regarding the zinc silicate shop primer and the essential surface preparation before recoating. Other types of shop primer are not suitable for recoating and must be completely removed by abrasive blasting. Welds and damaged areas must be blast cleaned to Sa 2.5 (ISO 8501-1:2007).
Major repair/maintenance: abrasive blast clean to Sa 2.5 (ISO 8501-1:2007). If oxidation has occurred between blasting and application of Interzinc 22, the surface must be re-blasted to the specified pictorial standard.
Surface defects exposed by abrasive blasting must be ground, filled or treated by a suitable method.
Recommended surface profile 40–75 µm.
For specific advice, consult your local International Paint representative.
Note: for the marine environment in North America, the following surface preparation standard may be used: SSPC-SP10 in place of Sa 2.5 (ISO 8501-1:2007)
Interzinc 22 is supplied in two components: the liquid binder component (Component A) and the powder component (Component B). Under mechanical agitation, slowly add the powder (Component B) to the liquid binder (Component A). Do not add the liquid to the powder. Strain the paint before application, and stir the paint in the container continuously during spraying. Once mixed, a batch of paint must be used within the specified pot life.
Normally not recommended. Only in special circumstances or for high-temperature spraying (normally above 28 °C) is International GTA803 or International GTA415 (USA) used to assist spraying. Do not thin beyond local environmental regulations.
Recommended nozzle tip 0.38-0.53 mm (15-21 thou); total output fluid pressure at the nozzle not less than 112 kg/cm² (1,590 psi)
DeVilbiss MBC spray gun or JCA spray gun with leather seals, 704 air nozzle, E fluid nozzle.
Recommended for small areas only.
Not recommended.
Use a cleaning solvent that complies with local regulations. Consult the local representative for specific recommendations.
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 before resuming application.
All equipment should be cleaned immediately after use with International thinner. Flushing spray equipment periodically during the day is good working practice. Cleaning frequency depends on the volume sprayed, temperature and time in use (including delays). Do not exceed the pot life of the paint.
All surplus paint and empty containers must be disposed of in accordance with appropriate local regulations/laws.
If welding or flame cutting is performed on metal coated with this product, dust and fumes will be released; use suitable personal protective equipment and local exhaust ventilation. In North America, follow the instructions in ANSI/ASC Z49.1 “Safety in Welding and Cutting”.
All work related to the application and use of this product must comply with national health, safety and environmental protection standards and regulations.
Before using this product, obtain, read and follow the health and safety information in the Material Safety Data Sheet for the product. Read and observe all precautions in the Material Safety Data Sheet and on the container label. If these warnings and requirements are not fully understood, or cannot be strictly observed, do not use the product. During application and drying of the product, provide adequate ventilation and protective measures to keep solvent vapour concentrations within safe limits, so as to prevent poisoning or oxygen deficiency. Take protective measures to avoid skin and eye contact with the product (e.g. gloves, goggles, face shield, barrier cream). Specific safety measures depend on the application method and working environment.
Emergency contact: USA/Canada — medical 1-800-854-6813; Europe — tel. (44) 191 4696111, hospital and doctor (44) 207 6359191; China — tel. (86) 532 83889090; other regions — contact the regional office.
The minimum recoating interval depends on relative humidity. Below 65% relative humidity, the minimum recoating interval may be extended. In this case, confirm by solvent rub test. Consult International Paint for details.
The maximum recoating interval is normally unlimited, but depends on weather and environmental conditions. The Interzinc 22 surface must be clean, dry and free from soluble zinc salts and zinc corrosion products.
Consult International Paint regarding recoating procedures.
Recoat data are for guidance only and depend on local climatic and environmental conditions. For specific advice, consult your local International Paint representative.
Apply in good weather. The temperature of the surface to be coated must be at least 3 °C above the dew point. Unless otherwise specifically instructed, raise the paint temperature to between 21 and 27 °C before mixing and application to achieve optimum application performance. Unmixed paint (in sealed containers) must be stored protectively as specified in the Storage section of this product data sheet. The technical and application data given here are intended as general guidance for establishing an application procedure. Test results are obtained in a controlled laboratory environment, and International Paint does not claim that the published test results, or any other test results, accurately represent results obtained in all site environments. Because application, environmental and design parameters vary widely, care must be exercised in coating selection, performance verification and use.
In the Recoat Data section, unlimited = 'ext'. See the Marine Painting Guide — Definitions and Abbreviations available on our website.
| Packaging Specifications | Component A | Component B | ||
| Volume | Packaging | Volume | Packaging | |
| 13.78 L | 10.42 L | 15 L | 3.36 L | 20 L |
| 4.92 US gal | 3.72 US gal | 5 US gal | 1.2 US gal | 3 US gal |
For other packaging sizes, consult International Paint.
| Packaging Specifications | Packaging weight |
|---|---|
| 13.78 L | 37.4 kg |
| 4.92 US gal | 110.8 lb |
| Shelf life | Requires low-flash storage. |
|---|
Component A: 6 months at 25 °C; Component B: 12 months at 25 °C, after which re-inspection is required. Store in a cool, dry place away from heat and ignition sources.
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.
