IPN8710 Polymer Interpenetrating Network Coating

Overview
Two-component polymer interpenetrating network (IPN) coating system (primer/topcoat) for long-term anti-corrosion protection on steel and concrete.​

Composition
Aliphatic polyurethane prepolymer and polyethylene, pigments, additives, solvent; supplied as two components for both primer and topcoat.​

Typical uses
Long-term anti-corrosion decorative coating for internal/external walls of equipment and facilities in petroleum, chemical, power, metallurgy, transportation, food industries, gas holders, pipelines, and tanks.​
Also used for internal/external anti-corrosion of buried pipelines and cooling tower internal walls.​

Technical data (typical)

• Appearance: primer iron red or micaceous iron oxide red; topcoat various colors.​

• Theoretical consumption: primer 0.16 kg/m² at 50 µm DFT (loss not included).​

• Theoretical consumption: topcoat 0.16 kg/m² at 50 µm DFT (loss not included).​

• Density: primer 1.38 kg/L; topcoat 1.25 kg/L.​

• Drying time (25°C): surface dry 2 h; hard dry 24 h; full cure 7 d.​

Application data (25°C)

• Mixing ratio (A:B): 4:1.​

• Induction time: 5 min.​

• Pot life: 4 h.​

• Application methods: airless spray, brush, roller.​

• Thinner: IPN dedicated thinner, 3–8% (more for roller).​

• Recoat interval: min 12 h; max 7 d.​

• Recommended DFT per coat: 60–80 µm (brush/roller 30–40 µm).​

• System: IPN primer + IPN intermediate coating + IPN topcoat.​

Surface preparation
Steel: blast to Sa 2.5 or power-tool clean to St 3; surface profile 30–75 µm.​

System compatibility / packing / storage

• System compatibility: polymer interpenetrating network primer + intermediate coating + topcoat.​

• Packing: Part A 20 kg; Part B 5 kg.​

• Storage: dry, cool, ventilated; away from fire; avoid strong sunlight; no outdoor storage.​

• Shelf life: 12 months.