What Is The Difference Between Ordinary Flat Glass And Float Glass

A: Both ordinary flat glass and float glass are flat glass. It's just a difference in production process and quality.
Ordinary flat glass is a transparent and colorless flat glass produced by using quartz sandstone powder, silica sand, potassium fossil, soda ash, mirabilite and other raw materials, prepared in a certain proportion, and melted at high temperature in a furnace. It is then produced by the vertical upward method, flat pulling method, and rolling method. Ordinary flat glass is divided into three categories based on its appearance quality: premium, first-class, and qualified. According to nominal thickness, there are 12 specifications including 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 22, and 25mm. (Refer to "Flat Glass" GB11614-2009)
B: Float glass is a transparent and colorless flat glass made from raw materials such as sea sand, quartz sandstone powder, soda ash, dolomite, etc., prepared in a certain proportion, melted at high temperature in a furnace, and the glass liquid continuously flows from the tank to float on the metal liquid surface. It is spread into a glass strip with uniform thickness and polished by fire, cooled and hardened, separated from the metal liquid, and then annealed and cut. The glass surface is particularly flat and smooth, with a very uniform thickness and minimal optical distortion. Float glass is divided into three categories based on its appearance quality: superior, first-class, and qualified. Divided into nine types based on thickness: 3, 4, 5, 6, 8, 10, 12, 15, and 19mm.
C: The appearance quality level of ordinary flat glass is determined based on the number of defects such as ripples, bubbles, scratches, sand particles, knots, and lines. The appearance quality level of float glass is determined based on the number of defects such as optical deformation, bubbles, inclusions, scratches, lines, and fog spots.
D: Ordinary glass, emerald green, fragile, low transparency, and prone to aging and deformation under rain and sun exposure.
Float glass, transparent float glass is made by controlling the gate of the glass paste to enter the tin bath. Due to gravity and surface tension, it floats on the surface of the molten tin and then enters the tin cooling bath, making both sides of the glass smooth and even, and the ripples disappear. Dark green, smooth and without ripples on the surface, with good transparency and a certain degree of toughness.
E: The production process of float glass is different from that of ordinary glass. The advantage is that the surface is hard, smooth, and flat. The color of the side of float glass is different from that of ordinary glass, it turns white, and after reflection, the object does not deform, while there is generally no water ripple deformation.