Coating Systems & Solutions
Surface Preparation for Industrial Coatings: ISO 8501, SSPC & Practical Selection Guide
Surface Preparation for I
Polyurethane enamel (2K) for steel or concrete protection in corrosive environments.
For metallurgy, power, petrochemical, bridges, ports, terminals.
Mixing ratio 18:3; surface dry 1 h at 25°C.
Compatible over polyurethane or epoxy intermediate coatings.
Overview
Two-component polyurethane enamel for protective finishing on steel structures or concrete surfaces in corrosive environments.
Provides resistance to water, boiling water, oil, and benzene solvents, and offers weather resistance for outdoor service.
Composition
Formulated with polyurethane resin, high-grade weathering- and corrosion-resistant pigments, additives, and solvents.
Cured with TDI trimer; supplied in Part A & Part B packs.
Typical uses
For steel structures or concrete surfaces in corrosive environments, including metallurgy, power, petrochemical, bridges/ports, and terminals.
Technical data (typical)
Appearance: Various colors.
Theoretical consumption: 0.11 kg/m² at 35 μm DFT (excluding loss).
Hardness: 0.6.
Density: 1.2 kg/L.
Drying time (25°C): Surface dry 1 h; hard dry 24 h; fully cured 7 d.
Application data (25°C)
Mixing ratio (Part A:Part B): 18:3.
Induction time: 5 min.
Pot life: 3 h.
Application methods: Airless spray, brush, roller.
Thinner: X-7 polyurethane thinner; dilution 3–7%.
Recoat interval (25°C): Min 24 h; max 7 d.
Recommended coats / DFT: 1 coat 40–50 μm; brush/roller 1 coat 30–40 μm.
Surface preparation
Remove dust and oil contamination from the previous coat; if beyond maximum recoat interval, roughen the surface.
When used as the first coat: blast/shot blast to Sa 2.5 or power-tool cleaning to St 3; surface profile 30–75 μm.
System compatibility / packing / storage
Compatibility: Previous coat—polyurethane intermediate coating; epoxy intermediate coating, etc.
Packing: Part A 18 kg; Part B 3 kg.
Storage: Shelf life 12 months; store dry/cool/ventilated, away from fire and direct sunlight; no outdoor stacking.
CSPE cooling tower damp-proof coating for inner wall anti-corrosion service.
For cooling tower inner wall protection.
Single-component; min recoat 12 h at 25°C.
Resists freeze-thaw, damp heat, and mildew.
Polyurethane cooling tower damp-proof coating (2K) for waterproof anti-corrosion lining.
For cooling towers, sewage tanks, mines, underground buildings.
Primer ratio 24:3; topcoat ratio 18:3.
Pot life 4 h; min recoat 12 h.
Premium polyurethane marking coating (2K) for steel structures and concrete chimneys.
For chimney marking and protection.
Mixing ratio 18:3; pot life 4 h.
High gloss; fully hardened 7 d at 25°C.
Epoxy bitumen cooling tower damp-proof coating (2K) for cooling tower inner wall protection.
For cooling towers, sewage tanks, underground mines.
Mixing ratio 25:2.5; pot life 4 h.
Waterproof, anti-seepage, and mildew resistant.
Surface Preparation for I
Industrial Coating Failur
Anti Corrosion Coating Mi
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