Foshan tempered glass factory custom processes laminated glass thickness categories and materials
Release time：
Dec 18,2024
Laminated glass is a type of safety glass made by bonding two or more layers of glass with one or more interlayer materials (such as PVB, SGP, etc.). It has excellent impact resistance, sound insulation, thermal insulation, and anti-theft properties. Below is a detailed introduction to the thickness categories and materials of laminated glass:
1. Thickness Categories
The thickness of laminated glass is mainly determined by its application scenario and safety requirements. Common thickness specifications for laminated glass include 6mm, 8mm, 10mm, 12mm, etc., but can also be customized according to customer needs. Here are common application scenarios for different thicknesses of laminated glass:
6mm laminated glass: commonly used for indoor partitions, furniture, and other situations where safety requirements are not high.
8mm laminated glass: commonly used for residential windows, doors, and other situations that require a certain level of safety protection.
10mm laminated glass: commonly used for shop windows, office building facades, and other situations with higher safety and sound insulation requirements.
12mm and above laminated glass: commonly used in banks, jewelry stores, and other situations that require high safety protection.
In addition, laminated glass can also be classified according to the number of glass layers, such as double-layer, triple-layer, and more. Double-layer is the most frequently used type, while triple-layer laminated glass can be made as ordinary laminated glass or bulletproof glass. The more glass layers there are, the stronger the impact resistance and safety, but the weight will also increase, making installation more difficult.
2. Materials
The materials of laminated glass mainly include two parts: glass substrate and interlayer material.
Glass substrate:
Laminated glass typically uses tempered glass or float glass as the substrate. Tempered glass has high strength and impact resistance, while float glass has good flatness and excellent optical properties.
According to color classification, laminated glass can also be divided into regular white, ultra-white, colored, etc. Among them, ultra-white laminated glass has higher light transmittance than regular white laminated glass, does not appear green, and has a light transmittance of over 99%.
Interlayer materials:
PVB (Polyvinyl Butyral): PVB is one of the most common interlayer materials in laminated glass. It has excellent light transmittance, impact resistance, and adhesion, effectively preventing glass shards from causing injury after breakage. PVB film colors can be chosen from transparent, milky white, blue, dark gray, light green, tea color, etc., with a thickness customization range of 0.38 to 3.04mm.
SGP (Ionic Interlayer): SGP film is of higher quality than PVB film, with mechanical properties twice that of PVB film of the same thickness, good moisture resistance, a yellowing coefficient of less than 1.5, and tear strength five times that of PVB. Therefore, SGP laminated glass performs better in terms of safety.
EVA (Ethylene-Vinyl Acetate Copolymer): EVA is a high-viscosity film material that is also commonly used as an interlayer material in laminated glass. It has good flexibility and adhesion, but its impact resistance is slightly inferior to PVB and SGP.
PU (Polyurethane): PU is a high-performance elastomer material that can also be used as an interlayer material in laminated glass. It has excellent weather resistance, chemical corrosion resistance, and impact resistance, but is relatively expensive.
In summary, the choice of thickness categories and materials for laminated glass should be determined based on specific application scenarios and safety requirements.
When making a selection, factors such as the thickness of the glass, the performance of the interlayer materials, and price should be comprehensively considered to ensure that the selected laminated glass meets actual needs and possesses good safety and durability.
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