Surface preparation accounts for 50-70% of coating performance. Standards: ISO 8501-1 visual assessment, Sa 1 (light wire brush), Sa 2 (thorough wire brushing), Sa 2½ (commercial blast), Sa 3 (white metal). For water-based primers, Sa 2½ is recommended. Surface profile: 50-85μm for most applications. Moisture, oil, dust, and salts must be removed before application.
Introduction
Surface preparation accounts for 50-70% of coating performance. Standards: ISO 8501-1 visual assessment, Sa 1 (light wire brush), Sa 2 (thorough wire brushing), Sa 2½ (commercial blast), Sa 3 (white metal). For water-based primers, Sa 2½ is recommended. Surface profile: 50-85μm for most applications. Moisture, oil, dust, and salts must be removed before application. This article provides in-depth technical information for coating professionals, formulators, and end-users seeking to understand and apply modern water-based coating technology.
Technical Details
The technology underlying modern water-based coatings has matured significantly over the past two decades. Today's water-based systems deliver performance that rivals or exceeds traditional solvent-based coatings in most industrial applications, while providing substantial environmental and safety benefits.
Practical Applications
From anti-corrosion primers for offshore platforms to decorative finishes for architectural metalwork, water-based coatings serve diverse industries. SGTECH Coatings has developed specific product lines optimized for each major application category, drawing on 15+ years of manufacturing experience and field-proven performance.
Best Practices
Successful application of water-based coatings requires attention to environmental conditions, surface preparation, application technique, and curing. Our technical support team provides comprehensive guidance, from initial product selection through on-site troubleshooting.
Conclusion
Water-based coatings represent the future of industrial surface protection. With proven performance, environmental benefits, and cost-effectiveness, they are the preferred choice for forward-thinking manufacturers and end-users worldwide.
