# YUNG FLON MIDDLE COATING (FOR STEEL) RAINBOW PAINTS ## Product Code No.5400MM ## Product Type Two-component intermediate anti-corrosion coating formulated with epoxy resin, hardener, flaky micaceous iron oxide and aluminum pigment. ## Application Long-term anti-corrosion intermediate coat for steel structures (ships, bridges, storage tanks, refineries, power plants and general steel frames). ## Properties 1. Hard, flexible film with excellent adhesion 2. Outstanding rust prevention performance 3. Superior fresh water resistance 4. Excellent abrasion resistance 5. Good resistance to oil and chemicals 6. Excellent UV penetration resistance ## Specification Data - Color: Silver Red - Gloss: Flat - Flash Point: Above 14°C (68°F) - Specific Gravity: ≥1.4 kg/L (mixed paint) - Viscosity: 80~95 KU (25°C) - Drying Time - Tack-free: Within 2 hours (25°C) - Hard dry: Within 24 hours (25°C) - Full cure: 7 days (25°C) - Film Thickness: Wet film 230 μm, Dry film 150 μm - Theoretical Coverage: 1.9 m²/L, 10.0 m²/kg (@150μm dry film) - Minimum Recoating Interval: 20 hours (25°C) - No maximum recoating time limit - Volume Solids: 56% (mixed paint) - Pot Life: 4 hours after mixing at 25°C - Thinner: No.5400PS Thinner - Thinner Dosage: 0~25% (adjusted by construction method) ## Compatible Primers Full series Rainbow primers, No.1011 Inorganic Zinc Primer, No.1006 Epoxy Zinc Rich Primer ## Compatible Topcoats Rainbow standard topcoat, polyurethane finish, chlorinated rubber topcoat, fluorocarbon topcoat ## Storage Stability: Minimum 3 years under normal storage ## Application Methods Airless Spray, Brush Coating, Roller Coating ### Airless Spray Parameters Nozzle size: Graco 723 / 7219; air pressure: 3~4 kg/cm², pressure ratio ≥33:1 ## Construction Precautions ⚠️ 1. Mix base and hardener evenly as specified and apply immediately after mixing. 2. Fully remove moisture, grease, sludge, dust, rust and corrosive salts from substrate surfaces before coating. 3. Avoid construction when temperature below 10°C or relative humidity exceeds 85%RH; fully dry damp surfaces before use. 4. Clean all coating tools right after application. 5. Maintain adequate ventilation during confined tank interior construction. 6. If recoating interval exceeds the specified limit, roughen the aged coating surface to improve interlayer adhesion; double-coat application is not recommended. 7. The clear film may turn slightly yellow under sunlight exposure, which does not affect coating physical properties. ## 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.