(GLASS LAMINATING)EVA INTERLAYER FILM’s self life is about one year or longer.

ANALYZE DE-LAMINATION OF (GLASS LAMINATING)EVA INTERLAYER FILM

By Peter Shin
cnc@cncnext.com/ benext77@gmail.com
www.cncnext.com
DE-LAMINATION:

1-The heating temperature is not high enough or the heating time is
not long enough for the (GLASS LAMINATING)EVA INTERLAYER FILM to melt
and react totally, so the cross link reaction is not completely
finished.
For this reason, please increase the heating temperature or prolong
heating time of laminating.

2-The (GLASS LAMINATING)EVA INTERLAYER FILM is out of the shelf life,
most (GLASS LAMINATING)EVA INTERLAYER FILM's self life is about one
year or longer. Please use the (GLASS LAMINATING)EVA INTERLAYER FILM
within the self life. Yes, different (GLASS LAMINATING)EVA INTERLAYER
FILM manufacturers may have different self life for the (GLASS
LAMINATING)EVA INTERLAYER FILM.

3-Maybe it's the problem of the quality of the (GLASS LAMINATING)EVA
INTERLAYER FILM. Please do some small sample test, before your mass
production.

4-The moisture of the glass or (GLASS LAMINATING)EVA INTERLAYER FILM
is too much. (GLASS LAMINATING)EVA INTERLAYER FILM are less sensitive
to moisture, compared to PVB FILM, but if the moisture is too high,
it will do harm to the adhesion of (GLASS LAMINATING)EVA INTERLAYER
FILM. Please dry glasses and store (GLASS LAMINATING)EVA INTERLAYER
FILM in good way.

5-There is some organic substance on the surface of glasses. For
example oily substance will also do harm to the adhesion of (GLASS
LAMINATING)EVA INTERLAYER FILM.
Please clean the glasses if necessary. You can use clean water,
industrial alcohol, Acetone to clean the glasses.

6-When laminated with the painting papers (like PP, PVC), the printing
ink is too much and not being dried.
Please dry the printing papers first before laminating with glasses
and (GLASS LAMINATING)EVA INTERLAYER FILM.

7-If you found the de-lamination is happening in the edges of the
laminated glass, here is why: Maybe the workers' hand touch the edges
of the glasses, and there are oily substance in the hand, which will
do harm to the adhesion of the (GLASS LAMINATING)EVA INTERLAYER
FILM.Please ask your worker to wear gloves.Maybe its summer, and your
worker work very hard, and their hands are sweaty. And the sweat will
do harm to the (GLASS LAMINATING)EVA INTERLAYER FILM.


SELF-EXPOSIING:

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 with the cold water.

3-Put some wood blocks between the laminated glasses to make the
cooling is well-proportioned.

4-The quality of the glass is not good, which are easy to expose.
5-The (GLASS LAMINATING)EVA INTERLAYER FILM is not eliminated the
internal stress. Good quality (GLASS LAMINATING)EVA INTERLAYER FILM
will be eliminated the internal stress to make the (GLASS
LAMINATING)EVA INTERLAYER FILM less contracting.
If the (GLASS LAMINATING)EVA INTERLAYER FILM are not eliminated the
internal stress, then when laminating the glass with (GLASS
LAMINATING)EVA INTERLAYER FILM, the (GLASS LAMINATING)EVA INTERLAYER
FILM's internal stress would try to contract to its original state and
cause the laminated glass to expose.

6-The silicon vacuum bag is not clean, which means maybe some block
inside the silicon vacuum bag. So when the pre- laminated glass on the
block and vacuuming is working, the pressure would break the laminated
glass.

If you need any other information, please feel free to contact us.
All rights reserved by CNC-INTERLAYER TECH:
【Product 1】CNC-Force® EVA INERLAYER FOR ARCHITECTURAL LAMINATED GLASS
【Product 2】CNC-Smart® SMART FILM FOR PRIVACY SWITCHABLE GLASS
【Product 3】CNC-Shield® PVB INTERLAYER FOR AUTOMOTIVE WINDSHIELD GLASS
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