What type of glass is predominantly used in the manufacturing of windshields?

Laminated safety glass is the predominant type of glass used in the manufacturing of windshields due to its safety features and structural integrity. This type of glass is created by bonding two layers of glass with a layer of polyvinyl butyral (PVB) in between, which holds the glass together even if it breaks. This design enhances safety by preventing shards of glass from flying into the vehicle's interior and helps to keep passengers secure in their seats during a collision.

Laminated glass also provides good sound insulation and UV protection, making it advantageous for automotive use. Its resistance to impact and ability to maintain structural integrity under stress are critical for ensuring a windshield can withstand various environmental conditions and maintain visibility, which is essential for safe driving.

While tempered glass is known for its strength and is used in side and rear windows, it does not possess the same safety properties as laminated safety glass when it comes to preventing injury upon breakage. Standard plate glass is not used in modern vehicle windshields due to its lack of safety features, and while polycarbonate plastic offers advantages in certain applications, it does not provide the same clarity and durability that laminated safety glass does.