Yes, Nano Glass Stone can be used for exterior applications in hot climates as it is highly resistant to weathering, UV radiation, and extreme temperatures. It can withstand high heat and direct sunlight without cracking, fading, or warping. Additionally, its non-porous and low water absorption properties make it suitable for use in areas with high moisture content, such as tropical climates or areas with frequent rain. However, it is recommended to consult with a professional installer to ensure proper installation and maintenance in outdoor settings.