Towards understanding and prediction of corrosion degradation of organic coatings under tropical marine atmospheric environment via a data-driven approach

• A random forest model successfully identified critical environmental thresholds (RH >80%, temperature <22.5°C) that accelerate organic coating degradation in tropical marine atmospheres. • High relative humidity and temperature have a cumulative effect on coating degradation, with corrosion risk peaking at nighttime. • The data-driven approach enables accurate prediction of coating degradation using environmental data, improving when considering the duration of influential conditions. • The study provides a cost-effective alternative to traditional exposure tests, offering insights for coating selection and corrosion control in marine environments.