Acrylic polyurethane topcoat (2K) for bridges, tanks, containers, and port machinery.
For large bridges, gates, tanks, steel towers.
Mixing ratio 18:3; pot life 3 h.
Compatible over zinc-rich and epoxy MIO intermediates.
Overview
Two-component acrylic polyurethane topcoat with weathering and color retention performance for long-term heavy-duty anti-corrosion service.
Applicable for low-temperature construction.
Composition
Formulated with polyurethane resin, high-grade pigments, solvents, and imported additives.
Cured with polyisocyanate; supplied in Part A & Part B packs.
Typical uses
Long-term heavy-duty anti-corrosion topcoat for large bridges, port machinery, construction machinery, containers, hydropower, nuclear power, large gates, tanks (including high-pressure tanks), and large steel towers.
Technical data (typical)
Appearance: Various colors.
Theoretical consumption: 0.13 kg/m² at 40 μm DFT (excluding loss).
Density: 1.2 kg/L.
Drying time (25°C): Surface dry 1 h; hard dry 24 h; fully cured 7 d.
Adhesion: Grade 1; bending 1 mm; impact 50; hardness 2H; gloss 87.
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-10 polyurethane thinner; dilution 3–7%.
Recoat interval (25°C): Min 24 h; max 7 d.
Recommended coats / DFT: 1 coat 30–50 μm; brush/roller 1 coat 30–40 μm.
Surface preparation
When applied over two-component primers: all surfaces must be clean, dry, and free of contaminants; 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—epoxy zinc-rich primer; inorganic zinc-rich primer; epoxy MIO intermediate coating; polyurethane intermediate coating.
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.
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Indoor Non-Intumescent Fireproof Coating for Steel Structure – Indoor cementitious thermal-insulation fireproof coating for steel.
3 h rating: ≥33 mm; 20–22 kg/m²; 5–6 coats.
Air spray 0.6–0.8 MPa; nozzle Φ4.0–6.0 mm.
Fire test: 32 mm thickness; 5400 mm span; 3.00 h.
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2 h rating: ≥3.2 mm; 4.5 kg/m² theoretical consumption.
Air spray 0.6–0.8 MPa; nozzle Φ4.0–6.0 mm.
Bond strength test result: 0.77 MPa.
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For blast-cleaned steel; surface preparation Sa 3 (not lower than Sa 2.5) is specified.
Fast drying at 25°C, RH 70–85%: touch dry 10 min; hard dry 2 h; cured 24 h.
Mix ratio 28:7; thinner X-11 inorganic zinc thinner (5–20%); compatible with epoxy/PU coating systems.
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Salt spray resistance 1300 h (as stated).
Theoretical consumption 0.25 kg/m² at 50 µm DFT (losses not included).
For offshore platforms, underwater steel, pipelines, oil tanks, bridges, and petrochemical steel structures.
Protect. Perform. Endure. – Advanced Coatings for Industrial Excellence.
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