# INORGANIC HIGH TEMPERATURE CORROSION PREVENTION COATING RAINBOW PAINTS ## Product Code No.1566 ## Type Two-component anti-corrosion coating formulated with moisture-cured inorganic polysiloxane copolymer, matched with heat-resistant and anti-corrosion pigments; fully cures at ambient temperature without heating. ## Application Heat-resistant anti-corrosion finish for metal structures such as steel pipes, steam pipes, heat oil pipes, heat preservation pipes and plant equipment. ## Properties 1. Excellent heat resistance & cold resistance: Resists continuous 650°C, intermittent -196°C 2. Hard dry within 8 hours at ambient temperature, fully cures at room temperature 3. Can be sprayed on high-temperature steel, galvanized steel and stainless steel substrates up to 220°C 4. Outstanding anti-rust performance on repeatedly heated metal substrates 5. Strong adhesion and superior rust prevention 6. Provides reliable protection under cyclic hot/wet and cold-heat alternating environments, suitable for CUI (Corrosion Under Insulation) service conditions ## Specification Data - Color: Iron Gray, Silver Gray, Red Brown - Specific Gravity: ≥1.4 Kg/L (mixed paint) - Viscosity: ≥70 KU (25°C) - Drying Time - Tack-free: Within 30 mins (25°C) - Hard dry: Within 4 hours (25°C) - Pot Life: 24 hours - Recoating Interval (minimum, based on substrate temperature) - 25°C substrate: 4 hours - 50~80°C substrate: 1 hour - 81~120°C substrate: 0.5 hour - 120~220°C substrate: 10 mins No maximum recoating interval limit - Film Thickness: Wet film 196~294 μm, Dry film 100~150 μm - Recommended Total Dry Film Thickness: 300 μm (3 coats × 100 μm dry film each) - Theoretical Coverage: 19.3~12.9 ㎡/Gal, 5.1~3.4 ㎡/L, 3.1~2.1 ㎡/Kg (based on 100~150μm dry film) - Volume Solids: 51 ±3% - Thinner & Dosage by Construction Temp - Ambient ~60°C: Add 5 ~20% 1564X Low-Temp Thinner (Max service temp 129°C) - 61~150°C: Add 20 ~35% 1564S Medium-Temp Thinner - 151~220°C: Add 35 ~50% 1564S High-Temp Thinner - Mix Ratio: Base : Hardener = 5.5 : 0.04 (by weight) - Storage Stability: Minimum 18 months under normal storage ## Application Methods Brush Coating, Air Spray, Roller Coating ## Construction Precautions ⚠️ 1. Thoroughly remove grease, moisture, dust, old paint film, rust and corrosive contaminants from substrates; blast cleaning to SIS Sa 2 1/2 or hand tool clean to SIS St 3 is recommended. 2. Galvanized & stainless steel substrates must receive surface sweep blasting (SIS Sa 1) or SSPC-SP 16 prior to coating. 3. Surface roughness requirement: 30~60 μm for carbon steel; ≥25 μm for stainless & galvanized steel. 4. When spraying on hot substrates, thinner evaporates quickly which will create rough film surface. 5. Construction temperature classification & matched thinner: - Ambient ~60°C: Low-temperature thinner (1564X) - 61~220°C: High-temperature thinner (1564S) 6. Avoid construction on rainy days or when relative humidity exceeds 85%RH. Fully dry damp surfaces before coating. 7. Recommended spray nozzle size: 0.021” ~0.025”. ## 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.