2025-06-20
Cost Comparison: Colour-coated galvanised aluminium coils typically cost less than colour-coated aluminium coils due to the lower cost of steel-based materials. Colour-coated aluminium coils, however, are more expensive due to the higher cost of aluminium materials and the frequent use of high-end coatings (such as fluorocarbon).Maintenance Requirements: Colour-coated galvanised aluminium coils may rust if the coating is damaged and require timely repairs; colour-coated aluminium coils have a strong self-healing oxide film on their surface, resulting in lower maintenance costs and greater long-term cost-effectiveness.Galvanised aluminium coils: ordinary polyester coating has a service life of approximately 10-15 years in a neutral environment and requires repair after damage;Aluminium coils: fluorocarbon coating (PVDF) can be used outdoors for 20-30 years, and the self-repairing ability of the oxide film extends the service life of the substrate, resulting in lower overall costs.