Epoxy Primer ZD6660 is an epoxy coating used as a primer. A multipurpose epoxy primer or intermediate coat for steel structures in various atmospheric environments. A two-component anticorrosive primer composed of epoxy resin, anticorrosive pigments, solvent, additives and a polyamide curing agent. Parameters on this page: volume solids 50 ± 3%, dry film thickness 50/80/100 µm, theoretical spreading rate 0.28 kg/m². Comparable products from the same brand: ZD6310-N01P Epoxy Oil-resistant Antistatic Primer, ZD6317 Fast-drying Zinc Phosphate Epoxy, Epoxy Primer for Hot-dip Galvanising ZD6180.
Source: ZINDN original technical data sheet (TDS) "Epoxy Primer ZD6660"; spreading rate and other values are converted from TDS parameters and are 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 | 50 ± 3% |
|---|---|
| Dry Film Thickness | 50/80/100 µm |
| Theoretical Spreading Rate | 0.28 kg/m² |
| VOC | ≤360g/L |
| Density / Specific Gravity | 1.4 ± 0.1 |
| Number of Components | Two-component |
| Flash Point | >25 °C (components A, B and the mixture) |
| Thinner | X-500 Epoxy Thinner |
| Mixing Ratio | Component A (base) : Component B (curing agent) = 6:1 |
ZD6660 Epoxy Primer
A two-component anticorrosive primer composed of epoxy resin, anticorrosive pigments, solvent, additives and a polyamide curing agent
A multipurpose epoxy primer with low-temperature curing, fast drying and fast overcoating, an unlimited maximum overcoating interval, and overcoatable with various high-performance topcoats.
Excellent anti-corrosion performance in various atmospheric environments;
High adhesion to steel and old coatings;
A multipurpose epoxy primer or intermediate coat for steel structures in various atmospheric environments;
Suitable for new construction or maintenance.
| Colour | Grey or iron red |
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| Gloss | Matt |
| Volume Solids | 50±3% |
| Mixed density (kg/L) | 1.4±0.1 |
| Dry film thickness (µm) | Minimum 50 | Typical 80 | Maximum 100 |
| Wet film thickness (µm) | 100 | 160 | 200 |
| Theoretical spreading rate (kg/m²) | 0.14 | 0.224 | 0.28 |
| Practical Spreading Rate | Allowing for a suitable loss factor |
|---|---|
| VOC content | ≤360g/L |
| New steel | Remove grease from the surface with a suitable cleaner, and rinse off salts and other contaminants with fresh water. Remove weld slag, and grind welds and sharp edges smooth. Abrasive blast clean to Sa 2.5 (ISO 8501-1); the ideal surface roughness is Rz 30–75 µm (medium roughness on the ISO 8503-1 comparator). Apply the primer within 4 hours of blast cleaning. |
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| Shop-primed surface | Welds, heat-treated areas and damaged areas must be blast cleaned to Sa 2.5 (ISO 8501-1) or cleaned with power tools to St 3. Only sound, approved zinc-rich shop primer may be retained. When exposed to humid conditions, zinc salts form on the zinc-rich primer surface; before recoating, remove soluble zinc salts with fresh water and remove white rust (zinc corrosion products) with a stiff brush. If the zinc-rich primer is damaged over a large area, full blast cleaning is recommended. |
| Repair | Remove oil, grease, salts, dust and damaged old coating |
Application environment temperature 5–38 °C, relative humidity not more than 85%, and the steel surface temperature should be at least 3 °C above the dew point. Do not apply outdoors in adverse weather such as rain, fog, snow, strong wind and heavy dust;
At application environment temperatures of -5 to 5 °C, use a low-temperature-curing product or take other measures to ensure proper film curing.
| Mixing | This product is supplied as two containers forming one unit. Stir the base thoroughly with a power mixer, add the curing agent in the specified ratio, stir again with a power mixer, and add the recommended thinner to adjust to a suitable application viscosity. Once mixed, use within the specified pot life. |
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| Thinner / Cleaning Solvent | X-500 Epoxy Thinner |
| Mixing ratio (by weight) | Component A (base) : Component B (curing agent) = 6:1 |
| Induction Time | 10 min (25 °C) |
| 5°C | 15°C | 25°C | 35°C |
| 5.5 h | 5 h | 3 h | 2 h |
| Application Methods | Airless spray and air spray are recommended; brush and roller are recommended only for touch-up, small-area application or repair. |
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| Application Methods | Unit | High-pressure airless spray | Air Spray | Brush/roller |
| Spray gun tip size | mm | 0.43~0.58 | 1.5~2.5 | —— |
| Spray pressure | kg/cm² | 150~200 | 3~4 | —— |
| Thinning quantity | % | 0~10 | 10~20 | 5~10 |
| Substrate surface temperature | 5°C | 15°C | 25°C | 35°C |
| Touch Dry | 4 h | 2 h | 1 h | 30 min |
| Hard Dry | 24 h | 16 h | 12 h | 8 h |
| Minimum recoat interval | 24 h | 16 h | 12 h | 8 h |
| Maximum recoat interval | Unlimited, but any chalk layer from long-term exposure must be removed completely before recoating. |
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Note: the above data are measured under well-ventilated conditions, at typical film thickness and 75% relative humidity, and are for reference only.
Actual drying times and the interval before recoating may be longer or shorter depending on film thickness, ventilation, humidity, the underlying paint, requirements for early handling and mechanical strength, and other factors.
| Preceding coat | Apply directly to steel surfaces prepared to Sa2.5 or St3, or to approved shop primer, zinc-rich primer or epoxy primer surfaces. |
|---|---|
| Subsequent coat | Epoxy, polyurethane, fluorocarbon and others |
| Packaging Specifications | Component A 24 kg, Component B 4 kg |
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| Flash Point | >25 °C (components A, B and the mixture) |
| Storage conditions | Store in accordance with national regulations. Keep in a dry, cool, well-ventilated place away from heat and sources of ignition. Keep containers tightly closed. |
| Shelf life | Shelf life is 1 year under good storage conditions. |
This product contains flammable materials; site safety must comply with the relevant national or local regulations. Read the safety labels on the packaging and the product Safety Data Sheet (MSDS).
Avoid inhaling solvent vapours and spray mist, avoid contact of paint with skin and eyes, and do not swallow the product. Take the necessary precautions and protective measures for fire prevention, explosion prevention and environmental protection. Use only in well-ventilated conditions. In confined or poorly ventilated areas, provide forced ventilation.
Waste disposal must comply with the relevant national or local regulations.
The information and data in this document are accumulated from our tests and practical experience and may serve as an application guide. Since the use of the product is generally beyond our control, we guarantee only the quality of the product itself. We reserve the right to modify this document without prior notice as the product is improved.
| Version information | Published in June 2022; this data sheet supersedes all previous versions |
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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.
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
Packaging specifications and batch lead times are subject to actual availability. PleaseContact Uscontact us for project-based calculation.
