ViaMobilidade, a rail service company in Sao Paulo, Brazil, chose to paint its rails white to reduce heat absorption and prevent bending, which often occurs when hot weather causes steel to expand.
The company's maintenance manager said the paint used is a water-based metallic paint that is environmentally friendly and also acts as a reflector, so the steel does not absorb heat. The company hopes this method will lower the temperature of the steel by at least 6 degrees Celsius, which will reduce the risk of accidents and problems, including derailments or delays due to various malfunctions. สล็อตเว็บตรง