VSG laminated glass
VSG Laminated Glass: Concept and Structure
VSG glass (laminated safety glass) is a type of glass constructed from two or more sheets of float glass or tempered glass, bonded together with layers of PVB (Polyvinyl Butyral) or EVA (Ethylene Vinyl Acetate) film. These film layers not only bond the glass sheets together but also provide superior safety features, impact resistance, and minimize shattering under strong impact. The number of film layers and glass sheets can be adjusted according to technical requirements and intended use, from two glass sheets with one film layer to multiple glass sheets with alternating film layers.
The production process of VSG laminated glass involves several key steps: cutting the glass to size, cleaning the glass surface, applying a PVB or EVA film layer between the glass sheets, vacuum pressing to remove air and create a strong bond, and finally, heating in a heat press to melt the film, ensuring the glass adheres tightly and uniformly. Modern heat and vacuum pressing technology ensures the glass has high mechanical strength, better impact resistance, and heat resistance compared to ordinary glass.
Applications and outstanding advantages of VSG laminated glass.
VSG laminated glass is widely used in construction, transportation, and industrial fields requiring high safety standards. In architecture, this glass is commonly used for doors, partitions, railings, and building facades of high-rise buildings, enhancing impact resistance, theft prevention, and noise reduction. Additionally, VSG glass is used in transportation vehicles such as cars, trains, and airplanes to protect passengers from shattered glass fragments in the event of a collision.
The outstanding advantages of VSG laminated glass include:
- High safety: When the glass breaks, the glass fragments are held together by the adhesive film, preventing injury to users.
- Effective sound insulation: Alternating layers of film and glass create a good soundproof environment, minimizing external noise.
- UV protection: The PVB film layer has the ability to filter ultraviolet rays, protecting interior furnishings and users' health from the harmful effects of UV radiation.
- High mechanical strength: This type of glass has better resistance to force and impact than ordinary glass, making it suitable for locations prone to strong impacts.
- Fire resistance: Some types of VSG glass are specially designed to increase heat resistance and prevent fire spread.
Popular types of VSG laminated glass
Currently on the market, VSG laminated glass is classified based on the number of glass layers and the type of film used:
- VSG double-layer glass: Consists of two glass panes with a PVB film layer, suitable for standard applications and cost-effective.
- VSG glass with 3 or more layers: Consists of 3 or more glass sheets with multiple layers of film interspersed, enhancing strength and safety.
- VSG glass with EVA film: Uses an EVA film layer instead of PVB, commonly used in applications requiring higher water resistance and durability.
- VSG soundproof glass: Specially designed with layers of film and glass of varying thickness to optimize sound insulation capabilities.
Technical standards and quality control of VSG laminated glass.
VSG laminated glass must meet stringent technical standards to ensure safety and performance. Some common standards include:
- ASTM (US) standards: Evaluate the strength, impact resistance, and safety of glass.
- Standard EN 12543 (Europe): Specifications for the construction, dimensions, and technical requirements of laminated safety glass.
- Vietnamese Standard TCVN: Applicable to building glass products, ensuring suitability for domestic climate conditions and usage requirements.
The VSG glass quality testing process includes tests such as impact resistance testing, load-bearing capacity testing, fire resistance testing, and sound insulation and UV protection testing. The test results are certified by reputable testing organizations, giving customers peace of mind when choosing the product.
Choosing the right laminated VSG glass for each project depends not only on technical standards but also on environmental factors, intended use, and investment budget. For high-end projects or those requiring high safety standards, laminated VSG glass with a greater number of film and glass layers will be the optimal choice.
Ngoc Quyet Company specializes in supplying multi-layered VSG laminated glass in a wide variety of types, sizes, and thicknesses to suit all customer needs. Please contact us for free glass samples and detailed price quotes. Please call: 0966.321.655.
