Self-exposing of Laminated Glass with EVA Film
By peter shin
Last article i wrote about processing laminated glass with EVA FILM is Bubbles Problems of Laminating Glass with EVA Film (1) . and Bubbles Problems of Laminating Glass with EVA Film (2)
Today i still like to talk about the cautions of processing laminated glass with EVA FILM.
And today’s topic is self-exposing. Yes as you remembered, i have talk about this in The Problems of Laminating Glass with EVA FILM.
1) The laminated glass is cooling too fast. Please do not open the oven door to help cooling after the temperature of the laminated glass is lower than 75 degrees.
2) Please avoid the hot laminated glass touching the cold water.
3) Put some wood blocks between the laminated glasses to make the cooling is well-proportioned.
But today I want add some more.
The following situations also would cause self-exposing of laminated glass with EVA FILM.
4.) The quality of the glass is not good, which are easy to expose.
5.) The EVA FILMs are not eliminated the internal stress. Good quality EVA Film will be eliminated the internal stress make the EVA film less contracting.
If the EVA Film are not eliminated the internal stress, then when laminating the glass with EVA Film, the EVA Film’s internal stress would try to contract to its original state and expose the laminated glass.
6.) The silicon bag is not clean, which means maybe some block inside the silicon bag. So when the pre- laminated glass on the block and vacuuming is working, the pressure would break the laminated glass.
Hope all these info about processing laminated glass with EVA FILM is helpful to you.
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