Low-e glass comes in two main types hard coat and soft coat. Hard coat low-e glass is produced by depositing a thin layer of metal oxide onto the glass surface during the manufacturing process. This type of low-e glass is more durable and is typically used in commercial applications.
Conclusion
The float glass production process begins with the melting of raw materials, including silica sand, soda ash, and limestone, at high temperatures. This molten mixture is then floated on top of molten tin, allowing the glass to spread evenly and form a continuous sheet. As the glass moves through the annealing lehr—a controlled cooling chamber—it gradually solidifies and is cut into standardized sheet sizes.