# ANTI-CORROSION COATING UNDER INSULATION RAINBOW PAINTS ## Product Code No.1568 ## Common Name High Temperature Water-Based Cement Coating for Engineering ## Type High-temperature resistant coating refined from modified silicone resin and heat-resistant anti-rust pigments. ## Application Anti-corrosion coating for high-temperature and cold-heat alternating cyclic environments. ## Properties 1. Excellent heat & cold resistance: Resists continuous 300°C high temperature and -196°C low temperature 2. Superior anti-corrosion protection on repeatedly heated metal substrates 3. Outstanding passivation and rust prevention performance 4. Can be sprayed on carbon steel, stainless steel and galvanized steel plates 5. Good water resistance and hydrophobicity under alternating hot & cold environments ## Specification Data - Color: RAL9007 Grey, Silver Red - Specific Gravity: ≥1.3 Kg/L (mixed paint) - Viscosity: ≥75 KU (mixed paint, 25°C) - Drying Time - Tack-free: Within 2 hours (25°C) - Hard dry: Within 8 hours - Full cure: 7 days (25°C) - Recoating Interval: Min. 4 hours, Max. 72 hours - Film Thickness: Wet film 235 μm, Dry film 125 μm - Theoretical Coverage: 16.1 ㎡/Gal, 4.2 ㎡/L, 3.2 ㎡/kg (dry film thickness 125μm) - Recommended Topcoat: No.1569 600℃ High Temperature Resistant Topcoat - Mix Ratio: Base : Hardener = 4.8 : 0.4 (by weight) - Volume Solids: 53 ± 3% - Pot Life: 2 hours after mixing at 25°C - Thinner: No.1005 Thinner (SP-12) - Thinner Dosage: 5~10% - Storage Stability: Minimum 18 months under normal storage ## Application Methods Conventional Spray, Airless Spray ## Construction Precautions ⚠️ 1. Thoroughly remove grease, moisture, dust, old paint film, rust and corrosive contaminants from substrate surfaces; blast clean to SIS Sa 2 1/2 or hand tool clean to SIS St 3. 2. Galvanized and stainless steel substrates require sweep blasting (SIS Sa 1) prior to coating. 3. Dilute base component evenly with thinner first before adding hardener. 4. Avoid sagging during spraying; single pass wet film thickness shall not exceed 300 μm. 5. If this coating is used for external exposed components, topcoat with matching finish coat for extra protection. 6. Leave coating fully cured for 7 days at ambient temperature after construction; the cured film will not crack under alternating temperature cycles from room temperature to 300°C. 7. Avoid construction on rainy days or when relative humidity exceeds 85%RH. Fully dry damp surfaces prior to coating. ## Note All data provided in this product datasheet are derived from internal laboratory tests for construction design reference only. Actual performance varies subject to different construction environments. This document does not constitute any legally binding warranty or statement from the manufacturer. Contact our technical department for clarification of any uncertainties.