When picking EVA film for laminated glass, there are several factors to consider. Here are some key points to keep in mind:
Application: Determine whether the laminated glass will be used indoors or outdoors. EVA film is mainly suitable for indoor applications due to its lower melting point and average UV resistance. It is commonly used for indoor partitions, decorative glass with patterns or materials, and low-rise outdoor glass. EVA film may not be suitable for outdoor high-rise applications due to the risk of softening in high temperatures. Thickness: The thickness of the EVA film should be chosen based on the specific application and requirements. Typical thickness options for EVA film for laminated glass include 0.25mm, 0.38mm, 0.5mm, and 0.76mm. Processing conditions: EVA film has different processing and storage conditions compared to other interlayer materials like PVB. EVA film can be stored at temperatures below 30°C and humidity below 80%. The lamination process requires a degree of vacuum of at least 700mmHg (0.092Mpa) and a temperature range of 100-110°C. On the other hand, PVB film needs to be stored at low temperature and dry conditions, and the lamination process is more complicated and energy-consuming. Adhesion and transparency: EVA film offers excellent adhesion to glass, metal, and plastics. It provides high transparency and good light transmittance, making it suitable for producing laminated glass with clear visibility. Strength and durability: EVA film exhibits high tensile strength and is suitable for indoor applications. It also has good water resistance and long-term aging resistance, ensuring the durability of the laminated glass. Price: EVA film is generally more cost-effective compared to other interlayer materials like PVB. The price difference can vary based on the thickness and other specifications.
When selecting EVA film for laminated glass, it is recommended to consult with manufacturers or suppliers who can provide specific recommendations based on your application requirements.