# POLYURETHANE COATING WHITE (N-TYPE) RAINBOW PAINTS ## Product Code No.725 ## Type Two-component topcoat formulated with acrylic polyol resin, non-yellowing aliphatic polyisocyanate hardener and anti-corrosion pigments. ## Application White topcoat for high-grade woodwork, vehicles, metal and FRP plastic products. ## Properties 1. Excellent weather resistance, long-term non-yellowing performance 2. Great adhesion, hardness and abrasion resistance 3. Outstanding resistance to oil, solvents and chemicals 4. High gloss, smooth film surface ## Specification Data - Gloss: Gloss - Color: White - Hiding Power: ≥12.5 m²/L (mixed paint) - Specific Gravity: ≥1.15 kg/L (mixed paint) - Viscosity: 70~90 KU (25°C) - Drying Time - Tack-free: Within 1 hour (25°C) - Hard dry: Within 6 hours - Full cure: 7 days (25°C) - Film Thickness: Wet film 65 μm, Dry film 30 μm - Theoretical Coverage: 12 m²/L, 8.3 m²/kg (30μm dry film) - Recoating Interval: Min. 15 hours, Max. 5 days (25°C) - Mix Ratio: Base : Hardener = 86.7 : 13.3 by weight (as printed on bucket) - Volume Solids: 45.7% (mixed paint) - Pot Life: 8 hours at 25°C - Thinner: No.1005 Thinner SP-12 - Thinner Dosage: 5~10% by weight (brush/roller); 10~15% for air spray ## Compatible Primers: Full series Rainbow primers ## Compatible Topcoats: Polyurethane finish, chlorinated rubber finish, ULI finish ## Storage Stability: Minimum 3 years under normal storage ## Application Methods Brush Coating, Air Spray, Roller Coating ## Construction Precautions ⚠️ 1. Mix base and hardener evenly per specified ratio, stand 10~20 minutes for reaction before use. 2. Fully remove moisture, grease, sludge, dust, rust and corrosive salts from substrate surfaces. 3. Avoid construction when temperature below 10°C or relative humidity exceeds 85%RH; fully dry damp surfaces before coating. 4. Clean all coating equipment immediately after use. 5. Maintain adequate ventilation during confined tank interior construction. 6. Sand the aged coating surface if recoating interval exceeds the limit to improve interlayer adhesion. ## Note All datasheet data are internal laboratory test results for construction reference only. Actual performance varies subject to different service environments. This document does not constitute legal warranty of the manufacturer. Contact our technical department for inquiries.