Star Heat Shield is an innovative nano glass coating designed to block up to 99% infrared (IR) and ultraviolet (UV) rays, reducing solar heat gain through windows, doors, and glass facades. This transparent, liquid glass coating helps keep your interiors naturally cooler, making your space more energy-efficient and cost-effective while lowering AC expenses. With its eco-friendly and s... http://starshieldpaints.com/pages/star-cool-shield