Practical application and storage of EVA laminated glass intermediate film

EVA film is a type of hot-melt adhesive, which is a copolymer of ethylene vinyl acetate. It is formulated through scientific technology and undergoes high-speed mixing, plasticization, extrusion, shaping, cooling, measurement and winding processes. After processing into a film, it has no stickiness at room temperature and undergoes melt bonding through vacuum hot pressing in glass laminating equipment. The processed EVA film has excellent flexibility, impact resistance, high transparency, and super strong adhesion; Moreover, it has extremely strong resistance to environmental stress cracking, moisture resistance, weather resistance, heat sealing, and other characteristics. It is precisely these characteristics possessed by EVA that have led to the rapid promotion and application of EVA film in the laminated glass and art glass industries since 2000. In the early stages of the development and application of EVA film, due to various technical formulas and processes, it was mainly targeted at glass deep processing enterprises in the fields of general building decoration materials photo bonding, strengthening wire and glue bonding, etc., replacing the adverse effects and drawbacks caused by long-term adhesive bonding. The variety of EVA products in the market has begun to show a trend of diversification: from a single ordinary transparent type to the expansion and extension of transparent color, opaque color, and disc sand series. This is the result of market catalysis, which more richly meets the multi-level needs of glass deep processing enterprises for EVA products.

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Regarding the storage of film

EVA laminated glass film is usually required to be stored in a ventilated, dry, and clean independent warehouse, avoiding direct radiation from sunlight and heat sources: to prevent rain, heavy pressure, external impact, and scratches from hard objects; The warehouse temperature should be controlled below 35 ℃, and the humidity should not exceed 60%; When there is a large inventory of film, a tray should be placed under the film to facilitate ventilation, heat dissipation, and moisture isolation. If the film is subjected to pressure, heat, or excessive moisture, it will exhibit varying degrees of self-adhesive phenomenon or yellowing and redness on the surface of the film, which will affect normal use.

The remaining film after use must be repackaged with clean materials to prevent the weak static electricity carried by the film itself from adsorbing dust and contaminating the film, affecting normal use.

Good fluidity, generally with good processing effect at around 110 ℃. Decorative glass with patterns and designs can be made using methods such as wire clamps and roll clamps in the film layer. Therefore, it is mainly used for indoor partitions and decoration.

EVA intermediate film is a thermoplastic polymer with excellent transparency and impact resistance, widely used in the construction and automotive fields. It has good weather resistance and UV resistance, which can effectively prevent glass aging and fading.

As an EVA film manufacturer and supplier committed to innovation and quality, Fangding Technology Co., Ltd. has always been committed to providing customers with high-performance, multifunctional transparent EVA interlayer films. Choosing our product means choosing a high-quality material solution that is transparent, safe, and durable.


Post time: Apr-17-2025