ER111 Epoxy Ester Antirust Primer

General Description

Application Guidelines

Surface Preparation

• New Steel Substrates: Blast to Sa2.5 standard. Apply a suitable shop primer for temporary protection if needed. Thoroughly clean damaged shop primer and contaminants from storage/processing before painting.
• Smooth Metal Surfaces: Carefully remove grease and other contaminants.
• Maintenance & Repair: Degrease with appropriate cleaners. Remove salts and debris with high-pressure freshwater washing. Remove loose rust and materials via blasting or power tools; grind edges and sweep residues. Repair to achieve full film thickness.

Application Conditions

• Substrates must be dry and clean. Maintain temperature above dew point to prevent condensation (e.g., in poorly ventilated areas like 海底阀 or flat bottoms).
• Ensure adequate ventilation during application and drying.

Topcoating

Remarks

• Substrates: Smooth metal surfaces and galvanized iron are only suitable for mild corrosion environments.
• Film Thickness: Adjustable based on application purpose and location, affecting spreading rate, drying time, and recoat interval. Normal dry film thickness range: 25–80 μm.
• Recoat Interval (based on 50 μm dry film thickness, 20°C):

  Topcoat Type	Atmospheric Environment	Minimum Recoat Interval	Maximum Recoat Interval
  Alkyd series¹	Mild/Moderate	1 hour/2 hours	No limit/3 days
  Chlorinated rubber, acrylic, polyurethane series²	Mild/Moderate	4 hours/6 hours	No limit
  ¹ For white spirit-soluble alkyd paints only. ² For aromatic solvent-soluble chlorinated rubber, acrylic, and polyurethane paints only.

  
  
  • If exceeding the maximum recoat interval, roughen the primer surface before topcoating to ensure inter-coat adhesion.
• Recoating with Epoxy/Polyurethane Paints: Can be topcoated with our company’s epoxy and polyurethane paints, but apply thin films (recommended dry film thickness: 25 μm) to avoid “biting.” Conduct a small-scale test before full application to ensure compatibility. Minimum recoat interval at 20°C: 48 hours; no maximum interval.

Safety Measures

Declaration