Aliphatic Polyurethane Topcoat ZD6430 is a polyurethane coating used as a topcoat. It is applied over epoxy or polyurethane previous coats and used as a protective, highly decorative, weather-resistant topcoat for metal structures or concrete surfaces in various atmospheric environments. A highly cross-linked two-component aliphatic overcoatable acrylic polyurethane topcoat made from hydroxyl acrylic resin, aliphatic isocyanate curing agent and high-weather-resistance pigments. Parameters on this page: volume solids 60 ± 3%, dry film thickness 30/50/80 µm, theoretical spreading rate 0.187 kg/m². Comparable models from the same brand: ZD5180 high-solids polyurethane topcoat, waterborne polyurethane topcoat ZD5200, ZD6310-N01F epoxy oil-resistant antistatic topcoat.
Parameter source: ZINDN original technical data sheet (TDS) for Aliphatic Polyurethane Topcoat ZD6430; 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 | 60 ± 3% |
|---|---|
| Dry Film Thickness | 30/50/80 µm |
| Theoretical Spreading Rate | 0.187 kg/m² |
| VOC | ≤350g/L |
| Density / Specific Gravity | 1.4 ± 0.1 |
| Number of Components | Two-component |
| Flash Point | >25 °C (components A, B and the mixture) |
| Thinner | ZX-780 Thinner |
| Mixing Ratio | Component A (base) : Component B (curing agent) = 5:1 |
ZD6430 Aliphatic Polyurethane Topcoat
A highly cross-linked two-component aliphatic overcoatable acrylic polyurethane topcoat made from hydroxyl acrylic resin, aliphatic isocyanate curing agent and high-weather-resistance pigments.
With high adhesion, a tough film, good impact resistance and high gloss and colour retention, combining protection and high decorative performance;
Excellent outdoor durability, excellent acid rain resistance, long-term resistance to the strong changes of marine climate and to erosion by seawater splash; good resistance to acid, alkali, solvent, salt and water splash; good overcoatability.
Suitable for overcoating over epoxy or polyurethane previous coats, as a protective, highly decorative, weather-resistant topcoat for metal structures or concrete surfaces in various atmospheric environments.
| Colour | Various colours |
|---|---|
| Gloss | Semi-gloss |
| Volume Solids | 60±3% |
| Mixed density (kg/L) | 1.4±0.1 |
| Dry film thickness (µm) | Minimum 30 | Typical 50 | Maximum 80 |
| Wet film thickness (µm) | 50 | 84 | 134 |
| Theoretical spreading rate (kg/m²) | 0.07 | 0.117 | 0.187 |
| Practical Spreading Rate | Allowing for a suitable loss factor |
|---|---|
| VOC content | ≤350g/L |
Remove all oil, grease and contaminants from the surface with a suitable cleaner; keep the surface clean, dry and free of contamination.
The product must be applied over the recommended anticorrosive coating and within the specified recoating interval. Damaged primer areas must be blast cleaned to Sa 2.5 (ISO 8501-1) or prepared to St 3 by power tool, and these areas must be touched up with primer.
Surfaces to be coated shall be clean and dry; the substrate temperature shall be at least 3 °C above the dew point to avoid condensation. The product cures at temperatures down to -10 °C provided the surface is free of ice and frost. Provide ample ventilation during application and drying in confined spaces.
Do not apply outdoors in adverse weather such as rain, fog, snow, strong wind and heavy dust;
| 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 | ZX-780 Thinner |
| Mixing ratio (by weight) | Component A (base) : Component B (curing agent) = 5:1 |
| Induction Time | No induction required |
| 5°C | 15°C | 25°C | 35°C |
| 6 h | 5 h | 4 h | 2.5 h |
| Application Methods | Airless spray or air spray is recommended; brush and roller are recommended only for stripe coating, small areas or touch-up. |
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Use a soft brush or short-nap roller to minimise air entrapment.
| Application Methods | Unit | High-pressure airless spray | Air Spray | Brush/roller |
| Spray gun tip size | mm | 0.35~0.53 | 1.5~2.5 | —— |
| Spray pressure | kg/cm² | 150~200 | 3~4 | —— |
| Thinning quantity | % | 0~10 | 10~25 | 5~10 |
| Substrate surface temperature | -5°C | 5°C | 15°C | 25°C | 35°C |
| Touch Dry | 2 h | 1 h | 45 min | 30 min | 20 min |
| Hard Dry | 48 h | 24 h | 12 h | 8 h | 4 h |
| Minimum recoat interval | 36 h | 24 h | 12 h | 8 h | 4 h |
| Maximum recoat interval | Self-overcoating is unrestricted. The surface to be coated must be free from chalking and other contaminants, and kept clean and dry; if necessary, abrade thoroughly before overcoating. Note: the above data are measured under conditions of good ventilation, typical film thickness and 75% relative humidity, and are for reference only. |
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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. The coating must be fully cured before immersion service.
| Preceding paint | Various epoxy and polyurethane intermediate coats or anticorrosive primers; consult Wuxi Huadong ZINDN for details. |
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Use the specified thinner and apply over the compatible primer or intermediate coat; otherwise product quality is affected.
During mixing, avoid contact with water, acids, alkalis, alcohols and the like. Component B reacts readily with water, alcohols and similar substances; the container of the remaining Component B shall be tightly sealed after mixing.
During application and drying/curing, the relative humidity must not exceed 80%.
Condensation or sudden cooling on the surface during or shortly after application causes loss of gloss, blushing and poor quality.
With roller and brush application, several coats may be required to achieve full hiding, especially for certain lead-free bright colours such as yellow and orange.
| Packaging Specifications | Component A 20 kg, Component B 4 kg |
|---|---|
| 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.
The factory item codes of Aliphatic Polyurethane Topcoat ZD6430 are as follows.Item No.is the most accurate form when ordering;Colour/colour codecorresponds to the actual colour (RAL, GSB are colour chart codes);Packaging SpecificationsFactory complete-set specification format. Colors not listed may be ordered against the colour card.
| Item No. | Colour / colour code | Packaging Specifications |
|---|---|---|
| ZD6430 RAL7035 | — | 24 KG |
| ZD6430 RAL9016 | — | 24 KG |
| ZD6430 RAL7040 | — | 24 KG |
| ZD6430 orange-peel grey | — | 20 KG + 4 KG |
| ZD6430 RAL9002 | — | 24 KG |
| ZD6430 ral9003 | — | 24 KG |
| ZD6430 GSB-B10 | — | 24 KG |
| ZD6430 RAL1003 | — | 24 KG |
| ZD6430 RAL2004 | — | 24 KG |
This model has a total of9item numbers, all listed on this page; colours outside the table (including special colours and bulk packaging) can be confirmed by phone, delivery dates are advised according to the factory's current production schedule and stock. In the packaging specification, the "+" indicates the complete-set notation for two-component products (base + curing agent), subject to the factory specification; a "—" in the colour column denotes an auxiliary product, or that the item has no colour code in the factory system.
