Rust Conversion Primer, Color Steel Renovation, Waterborne Industrial Paint, Rust Removal and Prevention
Epoxy ester primer is widely used as a rust-inhibiting primer for metal and mechanical surfaces, particularly suitable for steel structures, metal equipment, pipelines, and the corrosion-resistant coating of mechanical products. Additionally, zinc propylene epoxy ester primer is mainly used for the coating of aluminum and light metal substrates.
Technical Specifications
Viscosity: Typically 50 (measured with a #4 cup)
Fineness: Zinc Yellow Epoxy Primer ≤50μm, Iron Red Epoxy Primer ≤60μm (another specification is ≤60mm, the specific value depends on the product standard)
Drying Time: Surface dry (25°C) ≤ 2 hours, fully dry (25°C) ≤ 24 hours
Adhesion: ≤ Grade 2
Hardness: ≥0.4
Salt resistance: No bubbling or rusting after soaking in 3% NaCl solution at 25℃ for 48 hours
Installation Instructions
Surface Treatment: The steel surface must be blast cleaned to reach Sa2.5 grade as specified in GB8923, or can be achieved by power tool and manual rust removal to St3 grade, or acid pickling can also be used.
Coating Methods: Available in methods such as airless spray, air spray, roller coating, or brush coating.
During airless spray, the nozzle diameter is typically 0.4-0.5mm, and the spray pressure is 12-15MPa.
During air spraying, the nozzle diameter is 2.0 to 3.0 mm, and the air pressure is 0.3 to 0.4 MPa.
When rolling or brushing, it is advisable to add a suitable thinner (such as XC105) in an amount of 0-3% (based on the weight of the paint).