Heat-resistant coatings for glass are designed to reduce the amount of heat that passes through the glass, keeping the interior of a building or vehicle cooler. These coatings can also block ultraviolet (UV) and infrared (IR) radiation, which can damage furnishings and fabrics.   There are many different types of heat-resistant coatings for glass, each with its own unique properties. Some coatings are designed to be applied to the exterior of the glass, while others are designed to be applied to the interior. Some coatings are transparent, while others are tinted.