1️⃣ Surface Preparation
- Cleaning: Removes oils, dirt, and contaminants.
- Pretreatment: Chemical treatments (e.g., anodizing, chromate conversion) enhance adhesion and corrosion resistance.
2️⃣ Powder Application
- Electrostatic Spraying: Powder (epoxy, polyester, or hybrid) is applied using an electrostatic charge.
3️⃣ Curing
- Profiles are heated (160°C–200°C) to melt the powder and form a durable, continuous finish.
🎨 Types of Powder Coatings
- Epoxy: Excellent adhesion and chemical resistance; limited UV stability.
- Polyester: UV-resistant and ideal for outdoor use.
- Hybrid: Combines epoxy and polyester for balanced durability and weather resistance.
- Polyurethane: Highly durable with superior weather resistance, ideal for harsh environments.
