Which type of glass is normally used in automobile windshields?

Laminated glass is the standard choice for automobile windshields due to its safety features and structural integrity. This type of glass is made by sandwiching a layer of plastic, typically polyvinyl butyral (PVB), between two layers of glass. This construction helps to hold the glass together in the event of a breakage, preventing shards from flying into the vehicle and protecting occupants from injury. Additionally, laminated glass enhances durability and helps block out UV rays, making it a practical option for vehicles that must endure various weather conditions.

While tempered glass offers strength and shatter resistance, it is usually used in side and rear windows rather than windshields. Tempered glass cannot be easily replaced or repaired if broken, which is less ideal for windshields that require a certain level of longevity and safety features. Annealed glass is typically not used in automobiles because it is more prone to breakage and does not provide the necessary safety standards. Safety glass is a broader term that encompasses both tempered and laminated glass, but specifically in the context of windshields, laminated glass remains the preferred material for its superior protective properties.