Overview
Two-component epoxy zinc phosphate anti-rust primer for heavy-duty corrosion protection of steel structures.​
It is described as having good water resistance, salt water resistance, corrosion resistance, durability, adhesion, impact resistance, and coating system compatibility.​

Composition
Epoxy resin, zinc phosphate, pigments, synergistic anti-rust pigments, solvent, additives, and curing agent; two-component primer.​

Typical uses

• Heavy-duty anti-corrosion primer for steel structures in ports, docks, heavy structures, mining machinery, power machinery plants, and water conservancy projects.​

Technical data (typical)

• Appearance / color: Iron oxide red, gray.​

• Theoretical consumption: 0.12 kg/m² at 50 µm DFT (losses not included).​

• Density / specific gravity: 1.4 kg/L.​

• Drying / curing (25°C): Touch dry 1 h; hard dry 24 h; full cure 7 days.​

Application data (25°C)

• Mixing ratio (A:B): 7:1.​

• Induction time: 5 min.​

• Pot life: 4 h.​

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

• Thinner / Cleaner: X-7 epoxy thinner; typical dilution 2–8% (air spray/roller may require more).​

• Recoat interval / overcoating interval (25°C): Minimum 24 h; maximum 7 days.​

• Recommended DFT: 50–80 µm per coat (brush/roller: 30–50 µm per coat).​

Surface preparation

• Abrasive blasting or shot blasting to Sa 2.5, or power-tool cleaning to St 3; surface profile 30–75 µm.​

System compatibility / packing / storage

• Compatible topcoats: epoxy MIO intermediate coating, epoxy topcoat, polyurethane topcoat, acrylic topcoat.​

• Shelf life: 12 months.​

• Storage: Store in a dry, cool, ventilated warehouse away from fire sources and direct sunlight; outdoor storage is not permitted.​

• Packaging: Part A 21 kg; Part B 3 kg.