# YUNG FLON PAINT RAINBOW PAINTS ## Product Code No.5400F / No.5400F-1 / No.5400F-2 / No.5400F-3 / No.5400F-4 ## Type Two-component high-performance topcoat formulated with fluorocarbon resin, weather-resistant yellowing-resistant polyisocyanate curing agent and special pigments. ## Application Topcoat finish for vehicles, building exterior, aluminum, aluminum alloy, steel frames, bridges and factory steel structures. ## Properties 1. Fluorocarbon coating delivers excellent safety, weather resistance, chemical and anti-contamination performance; it is the latest high-value synthetic resin coating for industrial manufacturing. 2. Far superior durability than ordinary coatings, outstanding UV resistance 3. High gloss, smooth and elegant appearance 4. Excellent hardness, adhesion and abrasion resistance ## Specification Data - Gloss: Gloss - Color: Custom color series - Flash Point: Above 20°C (68°F) - Specific Gravity: ≥1.0 kg/L (mixed paint, varies by shade) - Viscosity: 60~75 KU (25°C) - Drying Time - Tack-free: Within 30 minutes (25°C) - Hard dry: Within 6 hours (25°C) - Full cure: 7 days - Film Thickness: Wet film 55 μm, Dry film 20 μm - Theoretical Coverage: 18.2 m²/L, 18.2 m²/kg (varies by color) - Recoating Interval: Min. 12 hours, Max. 5 days (30°C) - Mix Ratio: As printed on bucket - Volume Solids: 36% (mixed paint, color-dependent) - Pot Life: 6 hours at 25°C - Thinner: No.5400S Thinner - Thinner Dosage: 5~20% ## Compatible Primers Full series Rainbow primers, No.1011 Inorganic Zinc Primer ## Compatible Topcoats Transparent clear varnish No.5302F ## Storage Stability: Minimum 3 years under normal storage ## Application Methods Brush Coating, Air Spray, Airless Spray ### Airless Spray Parameters Nozzle size: Graco 617 / 719; air pressure: 3~4 kg/cm², pressure ratio ≥33:1 ## Construction Precautions ⚠️ 1. Mix base and hardener evenly as specified, 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 tools immediately after use. 5. Maintain full ventilation during confined tank interior construction. 6. If recoating interval exceeds the limit, finish coating within the recoating window to avoid surface contamination affecting adhesion; roughen surface if overdue. 7. Minor yellowing of film under long-term sunlight exposure will not affect physical coating properties. ## Note All datasheet data are internal laboratory test results for construction reference only. Actual performance varies subject to different service environments, and does not constitute legal warranty of the manufacturer. Contact Rainbow technical department for any inquiries.