Bubbles Problems of Laminating Glass with EVA Film (2)

Bubbles Problems of Laminating Glass with EVA Film (2)

I wrote an article Bubbles Solution for Laminated Class with EVA Film, and yesterday I wrote an article Bubbles Problems of Laminating Glass with EVA Film (1) .

Now we are going to continue the topic.

If you face the laminated glass with bubbles in edges, what’s wrong?

For this situation, they are two reasons:

1) It’s too early to put the laminating glass out of the oven, the temperature is still very high and the EVA FILM is still melting and reacting. When the laminated glass is getting cold, the melted EVA FILM is contracting, and the EVA Film can’t fully fill the gap between two glasses.

2)  It’s too early to stop the vacuuming.

And the cross link reaction of the EVA film is not totally finished and stable. And also the silicon bag would suck same air back in to the bag, which cause the bubbles. So generally speaking, don’t stop vacuuming until the temperature of the laminated glass is lower than 45 degrees.

3) Always remember you put the wire net on the vacuuming hole to make sure the vacuuming is not stop by the laminated glass on the hole. To be more perfect, also can use wire net over the laminated glass.

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