Welcome to EVA FILM group in yahoo.com

Hi everybody, i am peter shin from China. I have been in EVA FILM industry for decades. As many glass related workers still not believe in EVA FILM, they don’t  believe that EVA FILM can replace PVB FILM in many fields.
In the same time, EVA FILM has  many advantages than PVB FILM.
So i think it’s my job to spread EVA FILM knowledge to more people.
Welcome to join our group in yahoo.com, even though you are not in PVB industry. Only if you are in glass industry, please join in us and discuss with us .
If you want to learn more, go to our EVA FILMS’ INFO blog.
If you are a totally new about EVA FILM , please go to wikipedia. to learn the basic knowledge of EVA FILM.

Common problems of EVA FILM

Common problems of EVA FILM

Maybe you have already faced the following problems of EVA FILM,

-Gluing of EVA,

– Mosquitoes

– Black spots

– Holes on EVA FILM

-for colorful EVA FILM, the color is not even.

– Knocked marks

– Yellowing of EVA and etc. …

Gluing of EVA

Which means the two layer of EVA FILM stick together, three reasons can cause it:

(1)     The EVA FILM is ultra-transparent film; they are easy to show adhesives. In this situation, put membranes between the two layers of EVA FILM. Continue reading “Common problems of EVA FILM”

Bubbles Solution for Laminated Class with EVA Film

Bubbles Solution for Laminated Class  with EVA Film

When some customers processing laminated glass with EVA FILM,  bubbles appear inside the glass is the big problem they have to face.

People always think is this way:

1. the EVA Film you sent to us last time, don’t have bubbles problem, why this time the bubbles is coming out, that’s definitely the reason of the quality of your EVA Film.

2. Some customers face this situation. Maybe they don’t use EVA Film very much, so they don’t finish the one roll of EVA FILM in a short period. They used two thirds of the roll of EVA film, and after several weeks, they go back to use the left part of the roll. But this time the bubbles coming out, they are very confused. How come the same roll has different quality?

3. Some customer may just change the new EVA FILM supplier and the bubbles comes out. Even their new supplyer tell them it’s all about the processing , they would not believe him, they would think it’s of course the problem of the quality of your EVA film, because my older supplier don’t have this bubbles problem.

Many Laminated glass producer have misconception of the reasons of the bubbles problems. Here is  the real why:

1. First situation:  the temperature is too high, maybe more than 180 degree, which will cause the compound to break down and create gas. In this way, it’s just reducing your temperature, and everything would just be fine.

2. Second situation: the temperature in the oven is not average, which means some part of the glass, is hotter than others. So some part of the EVA film will melt and finish the crosslink reaction while other parts of EVA Film is still no t melted, which will interrupt the vacuuming and cause the bubbles. For this situation, we suggest you use the wind blowing heating machine.

3. Third situation: the Vacuum machine is old or the vacuum ability is not good enough. If the vacuum machine is old, renew it. If the vacuum ability is not powerful enough try to buy a new one.

4. Four situation: the air moisture is high. Much moisture in the air in your place is changed, which will easily cause the EVA film wet when it expose in the air. Moisture in the EVA FILM would cause the bubbles. Although the EVA FILM is less sensitive to moisture compared with PVB FILM. But if the moisture is too high, the bubbles will also come out.

Some customer open the packaged of one roll, and don’t use it up at one time. And the left part of the EVA film will absorb the moisture in the air and cause the bubbles.

5. Five Situation: Different EVA FILM supplier has different formula for EVA FILM, so if you change the EVA FILM supplier, you need to adjusting the processing parameters according to the supplier’s EVA FILM property.

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for Protecting Laminated Glass Composites

Argotec Introduces EdgeSealPLUS for Protecting Laminated Glass Composites
Argotec, Inc., one of the world’s largest producers of thermoplastic polyurethane (TPU) film and sheet, today announced the introduction ofEdgeSealPLUS, a new and improved version of its original product used to seal the edges of multilayered laminated glass composites.

The addition of a patent-pending foil layer between two sheets of TPU gives EdgeSealPLUS dramatically enhanced resistance to moisture, window cleaning solutions and the solvents contained in caulks and sealants.  These chemicals can penetrate into and degrade the layers within the composite.  The product also helps protect the edge of glass laminates from chipping and other minor damage, as well as creating an aesthetically pleasing appearance on the composite edge.

Argotec is a privately held, global supplier of custom-engineered, high-performance, polyurethane film and sheet for a wide variety of critical applications.

Further information about the company and its products may be obtained by calling (413)772-2564, faxing (413)772-2565, e-mailinginfo@argotec.com, or visiting the Argotec website: www.argotec.com.

Laminated Glass with EVA Film

Laminated Glass with EVA Film

Laminated Glass with EVA Film is much important  one in the series of laminated glass in glass industry .The processing principle of EVA laminated glass is  similar to most of the laminated glass . Furthermore, using EVA film to laminating glass does not require autoclave. All laminating processing will be finished and completed in one vacuum laminator.  EVA Film for glass has excellent transparency, outstanding adhesion and aging-resistance (more than 20 years), can be used for architectural glass, decorative glass with fabric.

EVA film:

EVA stands for ethylene vinyl acetate, a copolymer resin used in the production of laminated glass as the interlayer sandwiched between two pieces of glass. The main function of the interlayer is to hold the two piece of glass together, thus making them safer and more secure. EVA film is translucent and has a light pattern on the surface before heating. After heating, it becomes completely transparent, offering good visibility. In the production of laminated glass with EVA interlayer, no autoclave, roller press, air bag, or vacuum rubber ring is required. As EVA interlayer can be handled under normal climatic conditions, no clean room with climatic control is required.

EVA Film is made out of macromolecule material and it performs excellent in bonding strength, h Continue reading “Laminated Glass with EVA Film”