Container House
Container-house spray-painting is a process that delivers clear graphics, even color, and long service life through surface preparation, primer application, pattern design and spraying, topcoat and protection, then quality inspection and detail finishing.
Surface preparation is the foundation. First clean and remove rust: rinse loose dust with a high-pressure water gun; wipe stubborn oil with a neutral detergent, then rinse with clean water. On rusted areas, apply rust remover, let it sit, scrub off the rust with a wire brush, then sand with abrasive paper until bare metal shows. Next repair defects: fill dents and raised weld spots with body filler, sand smooth after drying, and seal gaps with epoxy putty so surface flatness stays within tolerance.
Primer application requires strict environmental control—temperature, relative humidity, and wind speed must meet requirements; pause work in rain or when condensation forms. Use an anti-rust primer such as epoxy primer, mix to ratio, and spray evenly without runs or missed spots; after drying, check full coverage.
Pattern design and spraying: deepen the drawings by producing CAD vector art from the design, defining graphic size, color parameters, spray zones, and layouts for special areas. Then run a sample test on scrap container panel, simulating the full workflow to check film adhesion, weather resistance, and color fidelity. Use high-concentration, outdoor acrylic paints for the graphics.
Topcoat and protection: choose a highly weather-resistant topcoat, keep spray thickness in the ideal range, and ensure even color. After spraying, apply a polyurethane clear varnish for surface protection and longer service life.
Quality inspection and detail finishing close the process. After coating, inspect coverage, adhesion, and surface flaws thoroughly—especially edges and corners prone to misses—and touch up as needed so every detail meets the target. The process requires clear graphics, even color, strong adhesion, and an overall outdoor service life of at least 3 years.
