ZD6430 Aliphatic Polyurethane Topcoat
Two-pack · colour and gloss retention
A high cross-link density, two-component, recoatable acrylic polyurethane topcoat made from hydroxy-acrylic resin, an aliphatic isocyanate hardener and highly weather-resistant pigments.
Key features
- Excellent adhesion, tough film, good impact resistance
- Outstanding gloss and colour retention — protection and high decoration in one
- Excellent outdoor durability and acid-rain resistance
- Resists long-term marine climate cycling and sea-water splash
- Good resistance to acid, alkali, solvent, salt and water splash
- Cures down to −10 °C provided the surface is free of frost
Technical data
| Property | Value |
|---|---|
| Color | Full range |
| Gloss | Semi-gloss |
| Volume solids | 60 ± 3% |
| Density | 1.4 ± 0.1 kg/L |
| Components | Two |
| Mix ratio | 5 : 1 (base : hardener) |
| VOC | ≤350 g/L |
| Thinner | ZX-780 |
| Service temperature | down to -10 °C |
| Flash point | >25 °C |
| Pot life | 4 h @ 25 °C |
| Pack size | 20 kg (A) + 4 kg (B) |
| Shelf life | 1 year (unopened) |
Film build and coverage
| DFT (µm) | WFT (µm) | Coverage (kg/m²) |
|---|---|---|
| 30 | 50.0 | 0.070 |
| 50 | 83.3 | 0.117 |
| 80 | 134.0 | 0.187 |
Drying and recoat
| Substrate temp. | -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 |
| Min. recoat | 48 h | 24 h | 12 h | 8 h | 4 h |
Max. recoat: Within the recoat window stated in the TDS for the applied system; remove contamination first.
Application
| Method | Airless spray | Conventional spray | Brush / roller |
|---|---|---|---|
| Nozzle | 0.43–0.58 mm | 1.5–2.5 mm | — |
| Pressure | 150–200 kg/cm² | 3–4 kg/cm² | — |
| Thinning | 0–10% | 10–20% | 5–10% |
Printable version (image) → Download TDS original (PDF, English) ↓
Surface preparation
Degrease the surface with a suitable cleaner; keep it clean, dry and free of contamination. Must be applied over the recommended anti-corrosive primer and within the specified recoat interval. Damaged primer areas must be blast cleaned to Sa 2.5 (ISO 8501-1) or power-tool cleaned to St 3 and re-primed.
Coating systems
| Preceding coat | Recommended epoxy or polyurethane intermediate / primer coat. |
|---|---|
| Consequent coat | Final coat — no further coating required. |
Related products
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