Technical Data Sheet ## Water-based Epoxy Rust Preventive Primer Water-based Epoxy Anti-rust Primer · Category: Oil tank Two-component water-based epoxy anti-rust primer formulated with advanced emulsion technology. Excellent adhesion to blasted steel, outstanding salt spray resistance, and low VOC for environmentally responsible corrosion protection of structural steel and industrial equipment. ## Key Features 240-1000 hours salt spray resistance (depending on topcoat system) Excellent adhesion on sand-blasted steel (Sa 2½) Low VOC (< 50 g/L), water-based, low odor Compatible with both water-based and solvent-based topcoats Fast dry-to-recoat, suitable for shop and field application ## Typical Applications Structural steelBridgesIndustrial machineryStorage tanksPipelines ## Technical Specifications TypeTwo-component water-based epoxyColorGrey / Red-brown / CustomSolid content≥ 55%Mixing ratioA:B = 5:1 by weight (typical)Pot life≥ 2 hours @ 25°CDry to touch≤ 1 hour @ 25°CRecoat time≥ 4 hours, ≤ 7 daysSalt spray≥ 240h (single coat), 1000h+ with topcoatAdhesionGrade 0-1 (cross-cut)VOC< 50 g/LCoverage8-10 m²/kg @ 50μm DFT ## Application Notes Surface preparation: Remove all oil, grease, dirt, and loose rust. Abrasive blast to Sa 2½ (ISO 8501-1) for best results, or power tool clean to St 3 minimum. Apply on dry surface with substrate temperature at least 3°C above dew point. Mixing: Stir component A thoroughly, then add component B (if applicable) in the corre