Producing technique for outdoor safety laminated glass

Producing technique for outdoor safety laminated glass
All rights reserved by CNC-INTERLAYER TECH:
【Product 1】CNC-Force EVA INERLAYER FOR ARCHITECTURAL LAMINATED GLASS
eva@evafilms.com
【Product 2】CNC-SmartSMART FILM FOR PRIVACY SWITCHABLE GLASS
smartfilm@smartestglass.com
【Product 3】CNC-Shield PVB INTERLAYER FOR AUTOMOTIVE WINDSHIELD GLASS
pvb@pvbfilm.net
Web: www.CNCnext.com www.HelloGlass.com www.CNCglass.com
Mail: cnc2@cncnext.com
benext77@gmail.com/
benext77@hotmail.com

Process the Pre-laminated glass
1.
Cut the pre-laminated glass into a shape and size that you need, and
burnish the edge of the glass for preventing the adhesive smithereens
from causing bubbles after lamination, as well as preventing the glass
edge cutting the silicone vacuum bag/ silicone sheet.
2.
Clean the pre-laminated glass with pure water, deionized water or
solvent (acetone or ethanol), and then dry the wet glass with clean
heat. Make sure there is no any dirt, water imprint or hand imprint on
the pre-laminated glass.

Combine the glass
Spread the EVA Film over the bottom pre-laminated glass, and tenderly
press the wrinkle of the EVA Film. Then put the other pre-laminated
glass over the EVA Film, and make sure every edge of the film and
glass is alined, and consolidate them with heat-resistant tape.
After the pre-laminated glasses and the film is put into the right
place, prune the unnecessary edge of the EVA film, but don’t pull the
EVA Film forcefully. There must be not any oddment on the glass edge
after the EVA Film has been pruned, otherwise the oddment may seal the
glass edge during the vacuuming, and thus allow the bubble stays
inside the laminated glass.
When placing the pre-laminated glasses on the forming shelf, make sure
there’s 3 to 5mm space between each one.
It’s suggested to place a space frame around the glass for better vacuuming.

Forming technique:
Before pushing the forming shelf into the oven, it’s better to turn on
the vacuum pump and check whether the bag is of air leakage. If the
vacuuming works well, then start to vacuum the bag under over 900mm HG
vacuum degree and under normal atmospheric temperature for 2 to 5
minutes.
Push the forming shelf into the oven, set the laminating temperature:
low temperature-60 degree for 15 minutes; high temperature-130
degree(reach 125 degree on the glass surface) for 30 to 50 degree.
Make sure the temperature of the glass surface inside reaches 125
degree for at least 30 minutes, because the temperature inside the
vacuum bag is different from that outside the bag due to the heat
conduction resistance of the silicone sheets.
After the heating and warming is finished, let the inside temperature
decrease to under 90 degree automatically. Then open the oven door,
pull the forming shelf out of the oven, and immediately cool the shelf
with a fan under evenly.
The vacuuming shall not be stopped until the shelf and laminated glass
temperature decreases to less than 50 degree.
Special tips:
In order to guarantee the utmost transparency, not only the processing
temperature must be correct, but also the cooling speed should be the
quicker, the better.

Attention again: in order to avoid any loss, it’s better not use glass
glue when installing the glass. If the glue must be used, it’s
suggested to use the neutral glue that can be dry quickly. It’s better
to test the glass glue and EVA Film in advance so as to prevent the
glass glue from having chemical reaction with the EVA film.

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
Web: www.CNCnext.com www.HelloGlass.com
Mail: cnc@cncnext.com
benext77@gmail.com/
benext77@hotmail.com

Process_prelaminated_glass

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