Powder coating is a durable and fire-safe finish for balcony components. Polyester powder coatings are recommended for their longevity (25–30 years) and ability to achieve Class A2-s1,d0 fire ratings under EN 13501. The key to performance lies in the pre-treatment process. Sapphire advocates for Qualicoat-certified systems, which include a seven-stage pre-treatment to ensure strong adhesion and resistance to corrosion—especially in coastal environments. While most RAL colours are readily available, metallics and custom finishes may require longer lead times.