Overview
These painted internal parts provide a protective and decorative finish for wind tower interiors, combining advanced coating technologies with structural reliability. Available for components like platforms, ladders, and cable trays, they are optimized to withstand the unique challenges of tower environments, including humidity, temperature cycles, and mechanical stress.
Features
Multi-Layer Coating System
Primer Layer: Zinc-rich epoxy (80μm dry film thickness) for electrochemical corrosion protection, meeting ISO 12944 C5-M standard.
Intermediate Layer: Polyurethane midcoat (50μm) to enhance impact resistance (50kg·cm) and surface hardness (3H pencil test).
Topcoat: Acrylic polyurethane (30μm) in RAL 9006 aluminum color, with anti-fungal additives for humid climates (ASTM G21-15).
Process Control
Automated powder coating line with electrostatic spray deposition (ESD), achieving 98% transfer efficiency and uniform film thickness.
Baking at 180°C for 30 minutes to ensure cross-linking density ≥85%, tested by solvent resistance (MEK rub test: ≥50 cycles).
Surface Preparation
Shot blasting to Sa 2.5 (ISO 8501-1) before painting, removing mill scale and rust to create ideal bonding surface (surface roughness: Rz 40-75μm).
Edge masking to prevent coating buildup in critical weld areas, ensuring full penetration during non-destructive testing (NDT).
Application
Tower Platforms: Painted walkways with anti-slip texture (coefficient of friction ≥0.65) for safe technician access in wet conditions.
Ladder Rungs: Coated with anti-corrosive enamel to resist boot abrasion and chemical spills from maintenance tools.
Internal Pipework: Color-coded coatings for easy identification of hydraulic, lubrication, and cooling lines, improving maintenance efficiency by 30%.
Why Choose Us
Coating Customization: Tailor color schemes, gloss levels (10%-90% specular gloss), and special effects (anti-graffiti, thermal reflective) to project needs.
Environmental Compliance: Low-VOC coatings (≤50g/L) compliant with EU ECOLOGO and US EPA Title 40, Part 59, reducing carbon footprint by 20% compared to solvent-based alternatives.
