Constructions with InfraCore® Inside require no maintenance after installation. The materials used are not affected by moisture, rot, fungi, temperature, etc. For this reason, InfraCore® constructions are covered under a 50-year guarantee. The outer surface of the bridge will finished in a high-quality gel coat or topcoat. As this finish is based on the same polymer as the bridge they will form one consistent unit. InfraCore® is resistant to almost all forms of vandalism*, such as graffiti and fire. Maintenance is limited to the cleaning and repair of the wearing course. Repair will be required after the normal decrease of the roughness of the sacrificial layer.