EVA Film

What is EVA film?

EVA stands for Ethylene Vinyl Acetate. It is a copolymer resin. The resin, together with a number of ingredients, is heated and mixed thoroughly and is then extruded through a flat die. EVA film is then formed.

EVA film is available with clear, white and many different colors. It contains no plasticizer. It is always packed in roll form. The outstanding adhesive EVA film is non-sticky and its surface is smooth.
EVA film is always used as an interlayer sandwiched in between two pieces of glass or plastic sheet.

EVA Film Is A Revolutionary New Type Of Interlayer For Glass And Plastic Sheet Lamination And Encapsulation Without Autoclaving

EVA film from the polymer resin (ethylene – vinyl acetate copolymer) as the main raw material, add special additives, processed by the special equipment and made of a high-viscosity thin film sheet, the industry also known as modified “EVA Laminated glass film. ” It has strong adhesive force on inorganic glass, it is tough, transparent, temperature, cold, bond strength, high elongation at break, good moisture resistance and other characteristics, is the world’s manufacturing safety laminated glass ideal and economic Of the adhesive material, but can be partially replaced by PVB materials used in automotive, construction industry. With its production of security folder glass can be achieved security, insulation, wind, impact, noise, anti-ultraviolet, and other ideal results.

EVA Film Is A Revolutionary New Type Of Interlayer For Glass And Plastic Sheet Lamination And Encapsulation Without Autoclaving

Characteristic

  • EVA stands for ethylene vinyl acetate.
  • It is a thermoplastic copolymer resin.
  • EVA resin, together with a number of ingredients, is heated and mixed thoroughly and is then extruded through a flat die of a special design plastic extruding machine.
  • EVA film is then formed. It is finally wind up in roll for storage and packing.
  • This extraordinary adhesive film is non-sticky and inert to water moisture.
  • Handling and glass assembly could be done under room temperature. No air conditioner and no de-humidifier are required.

eva-film-is-sandwiched-in-between-two-pieces-of-glass

Characteristics of EVA Film

  • EVA stands for ethylene vinyl acetate.
  • It is a thermoplastic copolymer resin.
  • EVA resin, together with a number of ingredients, is heated and mixed thoroughly and is then extruded through a flat die of a special design plastic extruding machine.
  • EVA film is then formed. It is finally wind up in roll for storage and packing.
  • This extraordinary adhesive film is non-sticky and inert to water moisture.
  • Handling and glass assembly could be done under room temperature. No air conditioner and no    dehumidifier are required.

What are the advantages of EVA film?

  • High tensile strength, ≧21 Mpa
  • Excellent transparency and great light transmission, ≧92%
  • Good adhesion properties, ≧50N /cm
  • UV protection properties, ≧99% UV block
  • Can withstand high temperature
  • Can act as sound barrier
  • Waterproof
  • High wind and weather resistance, ≧15 years
  • Humidity resistant
  • Long tem reliability
  • EVA Film is an alternative to PVB, which is costly.

 

    • A few comparisons between EVA Film and PVB

EVA Films

PVB

Cheaper compared to PVB

More costly

Easier to process

More complicated to process

No Autoclaving requires

Autoclaving required

Have great photovoltaic properties

Poor photovoltaic properties

Better adhesion properties

Low adhesiveness to glass

Highly resistance to humidity

8-9 times Lower resistance

Lower absorbance of water

High water absorbance

 

Use

  1. General Application

The Basic Configuration Of EVA Laminated Glass Is To Sandwich Different Colours Of EVA Film In Between Two Pieces Of Glasses.

There are various color choices, from standard clear to super clear, from light white to sandblast white, from transparent red to transparent black, from translucent orange to translucent blue and from opaque yellow to opaque purple, etc.

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2. Decorative & Finishing Applications

Design interlayer with images and graphics could be sandwiched in between two pieces of glass encapsulated by two pieces of EVA films. The design interlayer could be any images, graphics and/or any colors.

Decorative engineering EVA middle film is often used in combination with PET backing film, photo paper (PP, PVC), silk, metal wire, paper, glass fiber, fabric and so on. More than 20 kinds of colors can be selected to produce a variety of high-grade Very artistic sense of decorative glass, mainly for entertainment hotels, squares, home sliding doors, bathroom and other decorative and decorating.

3. Functional Application

Laminated glass sandwiched with a piece of PDLC film encapsulated by two pieces of EVA film. his electro-chromic PDLC film is connected to electricity power. When voltage is applied, it becomes transparent. When voltage is turn off, it becomes opaque.

4. Solar Application

The most popular photovoltaic technology is to sandwich silicon wafer-based in between two pieces of ultra clear roll glass encapsulated by plastic interlayer film. After years of trail and practice, EVA is proven to be the most cost effective and reliable film with the best performance.

Advantages of EVA Laminated Glass

  1. Versatile Design
  • Colors: EVA is available in many different colors, clear, translucent and opaque.

2.   High Impact Strength

3.   Shatter-proof

4.   UV Control

5.   Color Fade Resistant

6.   Noise Reduction

7.   Easy Installation

8.   Durable

Classification

(1) Outdoor high transparent EVA interlayer

eva-film-transparent

(2) Photo-enhanced transparent EVA interlayer

(3) Construction of ultra-transparent EVA intermediate film

(4) Ultra-white EVA interlayer

(5) Color transparent EVA interlayer

(6) EVA sliding door special EVA intermediate film

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