What Are the Common Specifications of PVB Film? GWELL’s PVB Film Extrusion Line Meets the Production Needs for Various Specifications

PVB (Polyvinyl Butyral) film plays a crucial role in laminated glass, widely used in industries such as construction, automotive, and safety protection. With increasing demand, GWELL's PVB film extrusion line has successfully broken the foreign monopoly, achieving full localization and driving innovation in the domestic market.

Key Properties of PVB Film

• Safety: PVB film has strong adhesive properties, preventing glass fragments from dispersing upon impact, thus maintaining structural integrity. GWELL’s extrusion line enhances film uniformity and bonding strength for optimal safety.

• Sound Insulation: PVB film reduces noise by 30 to 40 decibels, with thicker films offering superior soundproofing, especially in insulated glass. GWELL’s line produces high-quality PVB film that meets international noise reduction standards.

• UV Protection: PVB film blocks up to 99% of UV rays, providing excellent protection for interior spaces and objects. GWELL offers competitive alternatives to foreign products, ensuring effective UV protection across industries.

PVB Film Thickness Options

PVB film is available in various thicknesses, including 0.38mm, 0.76mm, 1.14mm, and 1.52mm. These thicknesses can be customized to meet specific safety and soundproofing needs. GWELL’s production line is flexible, offering films in a range of thicknesses to cater to diverse market demands.

Applications in Laminated Glass

• Flat Laminated Glass: Thicker PVB films are used for larger or thicker glass to enhance stability and security. GWELL’s production line supports efficient manufacturing of flat laminated glass, reducing reliance on imports.

• Curved Laminated Glass: Curved glass, especially tempered varieties, requires thicker PVB film (up to 2.28mm) to accommodate the stress distribution. GWELL provides reliable PVB solutions for curved glass manufacturers.

Importance in Laminated Glass Processing

PVB film is vital in the laminated glass production process, which involves assembly, preheating, rolling, and high-pressure autoclaving. It ensures the proper bonding of glass layers and maintains structural stability. GWELL’s advanced automation improves efficiency and quality in domestic production.

Applications of PVB Film

• Building Safety: PVB film is ideal for windows, balconies, and skylights, keeping glass intact even when broken. GWELL’s top-quality films are widely used in the construction sector, replacing imported products.

• Noise Control: PVB film is highly effective in soundproofing environments such as airports and train stations. GWELL’s PVB solutions provide superior noise reduction for various applications.

• UV Protection: In sensitive environments like museums and libraries, PVB film protects artifacts and interiors from UV damage. GWELL’s film is a high-demand replacement for foreign products in these industries.

Installation Considerations

PVB film is sensitive to temperature and humidity. Laminated glass should not be installed in high heat or humidity environments, as it may cause bubbles or delamination. Neutral structural adhesives should be used to prevent chemical reactions that could degrade the film.

Conclusion

PVB film is an essential material with broad applications across construction, automotive, and safety industries. Its key properties—adhesion, soundproofing, and UV protection—make it indispensable in laminated glass. GWELL’s PVB film extrusion line stands out for its high-quality, customizable solutions, supporting the growth and innovation of the domestic PVB film market by breaking foreign monopolies.