Veriwin.com

Ten Operation Attentions of EVA Vacuum Glass Laminating Machine

By ZAC GLASS www.helloglass.com

(Notes: the following knowledge is a general guide, there is no
guarantee that they are all correct or suits your laminating machine.
)

About Machine:
1.
Motor must run positive, if in reverse, it must reconnect the wire.
2.
Adjust the wind ban to make the circle-wind even.
3.
Electricity box must controlled by the experienced operator and when
checking the box, the power must be cut off.
4.
When the temperature of the furnace higher then normal, the operator
cannot go inside the furnace
5.
Must change the oil of vacuum pump time to time. Put the vacuum pump
to the dry and aeration place.

About laminate glass:

6.
Don’t put different thickness of glass into the furnace one time, the
thinner pre-laminated glass needs shorter time of keeping high
temperature, the thicker pre-laminated glass needs longer time of
keeping high temperature.
7.
Different thickness of the color materials needs different thickness
of Ethylene-vinyl acetate EVA Interlayer Film. Thin one can use 0.38
mm EVA film, thick one can use 0.76mmEVA film.

8.
EVA film become soft temperature is 70℃, then 90℃ start thawing, 110℃
reach dissolve estate. When the temperature ca get 130℃ and keep it
40minutes, Ethylene-vinyl acetate EVA Interlayer Film may finish cross
link reaction.

9.
Different thickness of EVA film, the fluidity at high temperature is
different, the thicker film, the fluidity is larger. When you operate
the machine, you can adjust the time and adjust the temperature based
on real situation and your experience.

10.
Try to use good quality float glass to make laminate glass. If you use
tempered glass, but the flat level is bad, you must use thicker
Ethylene-vinyl acetate EVA Interlayer Film to pile up in order to make
the laminated good quality. Bad flat level glass may make air bladder
on the surface of the glass leads to laminated glass with bubbles
inside.

Copyrights:
UCOLIN SILICONE TECH
(1)-Silicone Vacuuming Bag for EVA Glass Laminating Machine/Privacy
Glass Laminating
(2)-Silicone Sheet for EVA Glass Laminating Machine
(3)-Silicone Bag for PVB Glass Laminating Auto-clave
(4)-Silicone Rubber Sheet for Solar Cell Module Laminating Machine
(5)-Contact Us: uc@ucolin.com / www.ucolin.com
umewe360@gmail.com/ umewe360@hotmail.com

Installation Instruction of EVA Vacuum Glass Laminating Machine
www.helloglass.com

(Notes: the following is a general guide, there is no guarantee that
they are all correct or suits your laminating machine. )

1.
Install control box：
(1)
The control box must be carried by 2 people,use 4 nuts to fix it in
the specified location.
Attention:Vacuum pump is different from blower.
(2)
Electric Control box connection：connect according the signs at[ wire connecting
①] and[ wire connecting②]

Wire connecting①

+Wire connecting②

Power connecting:

2.
Vacuum pump installation：
Connect one side of above ￠9mX18m vacuum pipe to the vacuum pipe
faucet on the table, another side is connected to the vacuum pump air
pump faucet (as picture below)

3.
Orbit installation:
Adjust the two orbits’ height, make it balance to the inside orbit of
the machine, then put the up down car onto the orbit, adjust the width
of the orbit; weld the outside orbit and inside orbit connecting to
make it fixedness. Fix the outside orbit to the floor with screw (as
picture below)

4.
Lift installation:
Waggle the lift toward the “clockwise” direction, lift going up,
waggle the lift backward “clockwise” direction, lift going down.

Machine carry: as picture below

Copyrights:
UCOLIN SILICONE TECH
(1)-Silicone Vacuuming Bag for EVA Glass Laminating Machine/Privacy
Glass Laminating
(2)-Silicone Sheet for EVA Glass Laminating Machine
(3)-Silicone Bag for PVB Glass Laminating Auto-clave
(4)-Silicone Rubber Sheet for Solar Cell Module Laminating Machine
(5)-Contact Us: uc@ucolin.com / www.ucolin.com
umewe360@gmail.com/ umewe360@hotmail.com

80℃ Celsius Degrees Low Temperature Processing EVA Film for Laminating
PDLC FILM(Smart Glass Film, Privacy Film, Magic Film, LED Film)

www.SmartestGlass.com www.EVAfilm.com

+80℃ Celsius Degrees Low Temperature Processing
–Because of our patented modification of EVA Film formula, the CNC4SG
EVA Film can activate the cross-link reaction at 80℃ Celsius Degrees.
Due to this low temperature laminating advantage, when laminating
smart glass with CNC4SG EVA FILM, the smart PDLC film is only in the
80℃ Celsius Degrees environment and so can be protected from too high
temperature(other EVA film needs 130℃ to activate cross-link
reaction.)

+Bubbles Problem:
–High bubbles possibility-With Smart Glass Film sandwiched inside two
glasses, the Pre-Laminated Smart Glass is easier to get bubbles than
just laminating two glasses only. This problem has troubled the Smart
Glass manufacturer very much for long time, because Smart Glass Film
is high cost, they can not burden the cost of failure of laminating
processing.

+Bubbles Solutions:
–Advantage 1: Higher Melt-Flow-Rate. The main way we do is that we
specially modify a type of EVA Film for Smart Glass Lamination:
CNC-Force-4SG EVA, which is specially higher in Melt-Flow-Rate to make
the melting EVA Film can fill the glass and smart film surface more
easily and sufficiently to reduce the chance of bubbles. Less bubbles
means higher yield rate. High yield rate means cost reduction of your
lines.

–Advantage 2: Lower Viscosity. Second, we modify the Viscosity of EVA
Film to make the Melting EVA Film can go through and fill the glass
and smart glass film surface concave-convex more easily and
sufficiently to reduce the chance of bubbles. Less bubbles means
higher yield rate. High yield rate means cost reduction of your lines.

(Laminar shear of fluid between two plates. Friction between the fluid
and the moving boundaries causes the fluid to shear. The force
required for this action is a measure of the fluid’s viscosity. )

–Advantage 3: Dust-Free. The other advantage of CNC-Force-4SG EVA is
that the EVA Film is produced with MOST care of dust-free, no
contamination and cleanness.We specially pay highest attention to the
producing and package of CNC-Force-4SG EVA to make sure the EVA Film
is very clean and away from dust and contamination. Lest contamination
means higher yield rate. High yield rate means cost reduction of your
lines.

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

Advantages of Smart Glass Privacy Glass

+ Fast switching reaction. The switching can be finished in 0.1 Second.
+Safety—The Smart glass is processed in the safety laminated glass
way, owning the safety properties like the laminated glass made of
Ethylene-vinyl acetate EVA Interlayer Film . When the smart glass is
impacted, the glass broken pieces is sticked on the Ethylene-vinyl
acetate EVA Interlayer Film, and will not drop or fly to hurting
people.

+ Saving electricity power -When you need privacy, you turn off the
power, the smart glass is frosted, at this sate, the people outside
the smart glass can not see through.

+ Solar control- The smart glass is in processed in the same way of
the laminated glass with advanced Ethylene-vinyl acetate EVA
Interlayer Film. So the smart glass con blocked 99% UV RADIATIONS.
Which can protect the people and goods inside the room from the UV
RADIATIONS.

+ Sound control- The smart glass is laminated with high advanced
Ethylene-vinyl acetate EVA Interlayer Film, the Ethylene-vinyl
acetate EVA Interlayer Film owns the properties of sound insulation.
So the smart glass can reduce about 38 db of the noise outside.

+ Use for projection- When the smart glass in privacy sate, the Degree
of scattering is more than 43% and the light transmission is more than
50%. So the projection can be implied and the view effect is great.

All rights reserved by:
CNC INTERLAYER TECH
cnc@cncnext.com / www.cncnext.com
eva@evafilms.com / www.evafilms.com
benext77@gmail.com / benext77@hotmail.com

Storage of Smart Glass Film(switchable glass film, privacy glass film)

When in long time storage of smart glass film(switchable glass film,
privacy glass film)
, because the smart glass film is made of liquid crystal and polymer,
so the smart glass film(switchable glass film, privacy glass film)
may be decompound by the acid and basicity in the air.

But CNC INTERLAYER TECH use the highest purity of crystal to avoid
decompounding.

But anyway, if you don’t use the smart glass film(especially the
non-adhesive smart glass film), please repack it in sealed condition.

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

Reasons of Failure to Make Good Laminated Glass

As a experienced GLASS LAMINATION EVA FILM manufacturer in China, we
have been asked many times why the laminated glass is successful when
laminating with EVA Film?
Generally, the laminated glass manufacturer when question that the
quality of EVA FILM is the reason why the laminated glass is
unsuccessful.
But the true is: there are many parameters would cause the failed
laminated glass.
Now, we would like to list them here:

The laminating oven may be the reason that cause the failure of laminated glass.
The processing inappropriate procedure( time and temperature control)
maybe the reason cause the failure of laminated glass with EVA Film.
The basic glass you use, have you clean the surface of the glasses?
The interlayer you put inside the laminated glass; Does it stand high
temperature? Does will do harm to the vacuuming?
The environment of your region. Is the humidity high in your region?
The operating skill of your worker.And the Quality of the EVA Film.
All the above features may be the reason that cause the failure of the
laminated glass.
So, when you face the laminated glass failure, please consider all the
possibilities and check all of the situations.

All rights reserved by
China Ethylene-vinyl acetate EVA Interlayer Film Manufacturer for
Safety Architectural Laminated Glass.
China EVA Film for Smart Glass, Privacy Glass, LED Glass etc.
China Solar EVA Film for Solar Panel Encapsulation.
China Switchable Film for Privacy Glass, Smart Glass.
[cnc@cncnext.com / www.cncnext.com / benext77@gmail.com /
benext77@hotmail.com) (eva@evafilms.com / www.evafilms.com ]

Implications of Laminated Glass with EVA FILM

Outdoor Super-Transparent EVA Film for Architectural Safety Laminated Glass

Implied in:

Glass Railing, Curtain Wall, Canopy, Glass Doors, Shopping Malls
Laminated Glass, Bullet-proof Glass, Glass Staircase.

Indoor Super-Transparent EVA Film for Decorative Laminated Glass

Compared to ordinary transparent EVA FILM, the indoor
super-transparent EVA Films are better at transparence which can show
a higher top great artistic sense. I will talk about this more in
detail in next post.

Color-Transparent EVA FILM for Indoor Decorative Laminated Glass

Mainly implied in:

KTV Bar, Cafe, Restaurant, Business Hall, Dance Studio, Home
Improvement, Sales Department , Mall, Villa, Floor, Stairs, etc.

Color-Translucent EVA FILM for Indoor Decorative Laminated Glass

Mainly implied in:

KTV Bar, Disco, Restaurant, Sales Department, Operating Room, Coffee
Shop, Table, Villa , Studi, Bathroom, Floor Laminated Glass, Stair
Laminated Glass, Mall, etc.

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

Analyze Bubbles of Laminated Glass(Smart Glass)with EVA INTERLAYER FILM

By Peter Shin
cnc@cncnext.com/ benext77@gmail.com
www.cncnext.com

++What People May Think, When They Face Bubbles
When some customers processing laminated glass with EVA INTERLAYER
FILM, bubbles appear inside the laminated glass, People would always
think in this way:

1-The EVA INTERLAYER FILM I ordered last time, didn’t have bubbles
problem, why this time the bubbles is coming out, that’s definitely
the reason of the quality of EVA INTERLAYER FILM.

2-Some customers face this situation. Maybe they don’t use EVA
INTERLAYER FILM very much, so they don’t finish the one roll of EVA
INTERLAYER FILM in a short period. They used two thirds of the roll of
EVA INTERLAYER 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 of EVA INTERLAYER FILM has
different quality?

3-Some customer may just change the new EVA INTERLAYER FILM supplier
and the bubbles comes out. Even their new supplier 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 INTERLAYER FILM,
because the EVA INTERLAYER FILM of my older supplier don’t have this
bubbles problem.

++General Reasons for Bubbles
Many Laminated glass producers 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 160
degree, which will cause the EVA and other compound to break down and
create gas. In this way, it’s just reducing your temperature, and
everything would 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 INTERLAYER FILM will melt and finish the cross-link reaction
while other parts of EVA INTERLAYER FILM is still not melted, which
will interrupt the vacuuming and cause the bubbles. For this
situation, we suggest you modified the lamination 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. The moisture in the air in
your region is changed, which will easily cause the EVA INTERLAYER
FILM wet when it exposes in the air. Moisture in the EVA INTERLAYER
FILM would cause the bubbles. Although the EVA INTERLAYER FILM is less
sensitive to moisture compared with PVB FILM. But if the moisture of
EVA INTERLAYER FILM is too high, the bubbles will also come out.

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

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

++Micro Reasons for Bubbles:
1-The plainness of the tempered glass is bad.

–As you known, tempered glass is less plain than the flat glass. So
you should choose a company that produce better tempered glass.

— Since the tempered glass’s plainness is worse than flat glass, you
should use thicker EVA INTERLAYER FILM for the tempered glass.
Generally speaking, the tempered glass should be laminated with at
least 0.76 mm thickness EVA INTERLAYER FILM.

–Laminate less layers “pre- laminated glass” in a silicon bag at a
time. If you laminate too many layers “pre-laminated glass” in a
silicon bag at one time, the vacuuming would not work perfect and
cause the bubbles.

–If you laminated small pieces “pre-laminated glasses” at the same
time, put the “pre –laminated glasses” on the fabric, which will help
vacuum, and the fabric should cover the vacuum hole to make sure the
vacuum hole is not sealed by the silicone bag itself.

2-Check if the silicon bag is leaking.

–Averagely speaking, a silicon bag can be used for 2 or mare years.
But check the silicon bag if your laminated glasses have bubbles.

–Check the sealing buckle of the edge of the silicon bag is sealed
perfectly when processing laminated glass with EVA INTERLAYER FILM.

3-It’s too early to put the laminating glass out of the oven,
The temperature of laminated glass is still very high and the EVA
INTERLAYER FILM is still melting and reacting. When the laminated
glass is getting cold, the melted EVA INTERLAYER FILM is contracting,
and the EVA INTERLAYER FILM can’t fully fill the gap between two
glasses, so bubbles come out in edges.

4-It’s too early to stop the vacuuming.

And the cross link reaction of the EVA INTERLAYER 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.

Notes:Always remember you put the wire net on the vacuuming hole to
make sure the vacuuming is not stop by the laminated glass upon the
hole.

++Case Study: Bubbles of Laminated Glass with EVA INTERLAYER FILM

We have seen a situation in this way: Bubbles comes out in the
Laminated Glass. And we checks all the details of vacuuming and
vacuuming is definitely no problem.
But the bubbles still comes out in the laminated glass. And the
bubbles are regular and on lines.
Finally we realized that the bubble lines are right upon the heating pipes.

So we reduced the temperatures and did the test. Then no bubbles comes
out, but some part of laminated glass is not very transparent.

So we know the reason:
Because the heating pipes are under silicon bag, when laminating
glass, the part of laminated glass right upon the heating pipes are in
higher temperature. And the temperature inside the oven is not in
average.
Remember that when the temperature is too high, the copolymer and
compound will be breaking up and produce gas which would cause bubbles
inside laminated glass.
So It’s better of you can talk to the EVA Glass Lamination Oven
producer to modify the oven.

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

Analyze Bubbles of Laminated Glass(Smart Glass)with EVA INTERLAYER FILM

By Peter Shin
cnc@cncnext.com/ benext77@gmail.com
www.cncnext.com

++What People May Think, When They Face Bubbles
When some customers processing laminated glass with EVA INTERLAYER
FILM, bubbles appear inside the laminated glass, People would always
think in this way:

1-The EVA INTERLAYER FILM I ordered last time, didn’t have bubbles
problem, why this time the bubbles is coming out, that’s definitely
the reason of the quality of EVA INTERLAYER FILM.

2-Some customers face this situation. Maybe they don’t use EVA
INTERLAYER FILM very much, so they don’t finish the one roll of EVA
INTERLAYER FILM in a short period. They used two thirds of the roll of
EVA INTERLAYER 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 of EVA INTERLAYER FILM has
different quality?

3-Some customer may just change the new EVA INTERLAYER FILM supplier
and the bubbles comes out. Even their new supplier 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 INTERLAYER FILM,
because the EVA INTERLAYER FILM of my older supplier don’t have this
bubbles problem.

++General Reasons for Bubbles
Many Laminated glass producers 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 160
degree, which will cause the EVA and other compound to break down and
create gas. In this way, it’s just reducing your temperature, and
everything would 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 INTERLAYER FILM will melt and finish the cross-link reaction
while other parts of EVA INTERLAYER FILM is still not melted, which
will interrupt the vacuuming and cause the bubbles. For this
situation, we suggest you modified the lamination 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. The moisture in the air in
your region is changed, which will easily cause the EVA INTERLAYER
FILM wet when it exposes in the air. Moisture in the EVA INTERLAYER
FILM would cause the bubbles. Although the EVA INTERLAYER FILM is less
sensitive to moisture compared with PVB FILM. But if the moisture of
EVA INTERLAYER FILM is too high, the bubbles will also come out.

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

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

++Micro Reasons for Bubbles:
1-The plainness of the tempered glass is bad.

–As you known, tempered glass is less plain than the flat glass. So
you should choose a company that produce better tempered glass.

— Since the tempered glass’s plainness is worse than flat glass, you
should use thicker EVA INTERLAYER FILM for the tempered glass.
Generally speaking, the tempered glass should be laminated with at
least 0.76 mm thickness EVA INTERLAYER FILM.

–Laminate less layers “pre- laminated glass” in a silicon bag at a
time. If you laminate too many layers “pre-laminated glass” in a
silicon bag at one time, the vacuuming would not work perfect and
cause the bubbles.

–If you laminated small pieces “pre-laminated glasses” at the same
time, put the “pre –laminated glasses” on the fabric, which will help
vacuum, and the fabric should cover the vacuum hole to make sure the
vacuum hole is not sealed by the silicone bag itself.

2-Check if the silicon bag is leaking.

–Averagely speaking, a silicon bag can be used for 2 or mare years.
But check the silicon bag if your laminated glasses have bubbles.

–Check the sealing buckle of the edge of the silicon bag is sealed
perfectly when processing laminated glass with EVA INTERLAYER FILM.

3-It’s too early to put the laminating glass out of the oven,
The temperature of laminated glass is still very high and the EVA
INTERLAYER FILM is still melting and reacting. When the laminated
glass is getting cold, the melted EVA INTERLAYER FILM is contracting,
and the EVA INTERLAYER FILM can’t fully fill the gap between two
glasses, so bubbles come out in edges.

4-It’s too early to stop the vacuuming.

And the cross link reaction of the EVA INTERLAYER 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.

Notes:Always remember you put the wire net on the vacuuming hole to
make sure the vacuuming is not stop by the laminated glass upon the
hole.

++Case Study: Bubbles of Laminated Glass with EVA INTERLAYER FILM

We have seen a situation in this way: Bubbles comes out in the
Laminated Glass. And we checks all the details of vacuuming and
vacuuming is definitely no problem.
But the bubbles still comes out in the laminated glass. And the
bubbles are regular and on lines.
Finally we realized that the bubble lines are right upon the heating pipes.

So we reduced the temperatures and did the test. Then no bubbles comes
out, but some part of laminated glass is not very transparent.

So we know the reason:
Because the heating pipes are under silicon bag, when laminating
glass, the part of laminated glass right upon the heating pipes are in
higher temperature. And the temperature inside the oven is not in
average.
Remember that when the temperature is too high, the copolymer and
compound will be breaking up and produce gas which would cause bubbles
inside laminated glass.
So It’s better of you can talk to the EVA Glass Lamination Oven
producer to modify the oven.

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

Which Type of EVA Ethylene Vinyl Acetate Resin For Glass Laminating EVA Film
By Peter Shin www.helloglass.com

1.
Importance to learn more about EVA resign:

Glass laminating EVA Film is made of EVA Ethylene Vinyl Acetate resin.
If you want to learn more of EVA INTERLAYER FILM for laminated glass.
It’s helpful to learn more of EVA raw materials.

There are many type of EVA resign. Some is liquid, some is solid. So
which type of EVA resin is for extrusion sheet use as melt-adhesive in
glass laminating or solar panel encapsulation ? Following table shows
the right type of EVA resin for extrusion sheet use as
hot-melt-adhesive film.

2.
Right Type of EVA resin for hot-melt adhesive:
(Notes : the following information is just for reference, there is
not guarantee that they are very correct. If you need correct data,
please contact your EVA INTERLAYER FILM SUPPLIER.)

Properties Value
Vinyl Acetate Content 28 Wt.%
Melt Flow Rate 20 g/10min
Density 0.945 g/ cm3
Vicat Softening Point 44 °C
Melting Point 73 °C
Tensile Strength at Break 26 MPa
Elongation at Break 800 %
Hardness Shore A 45
Brittleness Temperature Ring&Ball Softening Point > 150 °C

Any other questions please feel free to contact us.
ALL RIGHT RESERVED BY CNC INTERLAYER TECH :
(Product 1. ) Ethylene Vinyl Acetate EVA Interlayer Film for Safety
Laminated Glass
(Product 2.) China Solar Ethylene Vinyl Acetate EVA Film for Solar
Panel Encapsulation
(Product 3.) China Smart Switchable Film for Privacy Glass, Smart Glass
(4)Web: www.cncnext.com/ www.evafilms.com
(5)Contact Us: cnc@cncnext.com/ benext77@hotmail.com /benext77@gmail.com\

COMMENTS ON SENTRY GLASS PLUS SGP FILM FOR LAMINATED GLASS OVER
TRADITIONAL PVB FILM

BY WWW.HELLOGLASS.COM

SGP FILM is a kind of specially modified PVB interlayer film.
SGP FILM stands for SENTRY GLASS PLUS.
The special modified properties of SGP FILM are:
1-glass strength after laminated is better than other PVB film
2-stiffness and creep resistance is better than other PVB film
3-temperature performance is better than other PVB film

And SGP FILM can meet the requirements of automotive safety laminated glass:
1-impact resistance from external objects.
2-ensure minimal head trauma for a passenger that strikes the windshield.
3-other safety consideration.

SGP FILM plays well at following test:
1-pressure test
2-three point bending test
3-post glass breakage test
4-temperature stability test

SGP FILM demonstrates significant structural performance advantages
over traditional PVB interlayer film world.
But some CHINA PVB MANUFACTUERS is keeping making progress in
modification of PVB FILM properties.
The properties of PVB Film made in China is advanced modified in these years.
And also EVA Interlayer Film made in China has made great progress in
structural performance properties to replace PVB Film both in exterior
and interior implication.

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

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

Bubbles of Ethylene Vinyl Acetate EVA Film Laminated Glass

By Peter Shin www.helloglass.com

Reason 1:
The plainness of the glass is not good. If you making tempered
laminated glass, make sure the thickness of Ethylene Vinyl Acetate EVA
film is thick enough.

Reason 2:
The Ethylene Vinyl Acetate EVA film is not melt completely when
processing in the laminating vacuum oven, you need to increase the
temperature or prolong the heating time to make sure Ethylene Vinyl
Acetate EVA Film is melt completely.

Reason 3:
Stop vacuuming too early. Make sure you keep vacuuming always working
in whole procedure of making laminated glass, and only stop the
vacuuming after the temperature is lower than 45 degree C.

Reason 4:
The silicone bag is leaking, so the vacuuming pressure can not reach 0.095MPA.

Reason 5:
Moisture in the surface of glass, Ethylene Vinyl Acetate EVA Film,
decorative interlayers is too much, please dry them before laminating.

Reason 6:
Part of laminated glass is suffering too high temperature, and lead to
the Ethylene Vinyl Acetate EVA Film decompose to gas. Make sure the
heating is well-distributed. And make sure the temperature detector is
working well and get the correct temperature.

Reason 7:
When edging laminated glass, bubbles appear at the edges. Because
edging makes heat, and too much heat causes the bubbles. Please use
more water to cool laminated glass when edging, and edging slowly and
softly if necessary.

Any other situation, please feel free to contact us.

ALL RIGHT RESERVED BY CNC INTERLAYER TECH :
(Product 1. )Ethylene-Vinyl Acetate Ethylene Vinyl Acetate Ethylene
Vinyl Acetate EVAInterlayer Film for Safety Laminated Glass
(Product 2.) China Solar Ethylene Vinyl Acetate Ethylene Vinyl Acetate
EVAFilm for Solar Panel Encapsulation
(Product 3.) China Smart Switchable Film for Privacy Glass, Smart Glass
(4)Web:www.Ethylene Vinyl Acetate EVAfilms.com / www.cncnext.com
(5)Contact Us: cnc@cncnext.com/ benext77@hotmail.com /benext77@gmail.com

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
Web: www.CNCnext.com
Mail: cnc2@cncnext.com
benext77@gmail.com/
benext77@hotmail.com

Silicone Bag for Laminated Glass Machine Laminating EVA Interlayer Film
www.Ucolin.com

+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 stick the
two piece of glass together, in order to make the sandwiched glass
safer and more secure.
EVA Film is made out of macromolecule material and it performs
excellent in bonding strength, heat resistance, cold resistance,
humidity resistance and tensile strength in laminated glass. It has
been partly taking the places of PVB film in laminated safety glass,
laminated art glass, laminated color glass.
EVA film is not adhesive before heating. After heating, it melts and
reacts. 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 processed under normal climatic conditions,
no clean room with climatic control is required. And the producing
machine of laminated glass with EVA Film is less cost and easier to
process.

+Laminated Glass with EVA Film
Laminated Glass with EVA Film is an important kind 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 laminated glass has excellent transparency, outstanding
adhesion and aging-resistance (more than 15 years), can be used for
architectural glass, decorative glass with fabric, privacy glass, auto
glass etc.

+EVA Vacuum Glass Laminating Machine is a equipment specially designed
for manufacturing laminated safety and decoration glass with
Ethylene-vinyl acetate EVA Interlayer Film (some kind of the one-step
glass laminating machine can also processing Polyvinyl Butyral PVB
Interlayer Film).

The EVA Vacuum Glass Laminating Machine uses the silicone vacuum bag
to make the pre-laminated glass is heating in the vacuum condition to
guarantee that final laminated glass don’t have bubbles.

It’s also possible to laminate EVA Interlayer Film with silk, paper,
calligraphy and painting, ultraviolet radiation unilateralism film,
light adjusted film and so on. All kinds of art glass, decorated
glass, privacy glass, safety glass and solar panel can be processed in
the EVA Vacuum Glass Laminating Machine.

Compared to autoclave producing line for Polyvinyl Butyral PVB
Interlayer Film, the EVA Vacuum Glass Laminating Machine is much
easier to operate and less cost to build., and more flexible and
convenient for the designer.

+Silicone Bag for Laminated Glass Machine Laminating EVA Interlayer

+Product features:
Great heat-resistant,
Great aging-resistance ,
Great resistance to EVA
Anti-corrosive,
Environment-friendly,
Long-use life,

+Product specification:
1) Common thickness: 3mm
2) Maximum width:3800mm without any joints
3) Any length
4) Common color: Milky (other color is available for custom)
5) Custom as customers require

All Rights Reserved By UCOLIN SILICONE TECH
(1)-Silicone Vacuuming Bag for EVA Glass Laminating Machine/Privacy
Glass Laminating
(2)-Silicone Sheet for EVA Glass Laminating Machine
(3)-Silicone Bag for PVB Glass Laminating Auto-clave
(4)-Silicone Rubber Sheet for Solar Cell Module Laminating Machine
(5)-Contact Us: uc2@ucolin.com / www.ucolin.com
umewe360@gmail.com/ umewe360@hotmail.com

LAMINATED GLASS STNADS STRONGLY IN SANDY HURRICANGE
www.helloglass.com WWW.EVAFILMS.COM
Peter Shin

The SANDY hurricane attacked New York city.
It’s a big news. And many Chinese people talked a lot of it in SINA WEIBO.COM
One photo is welcomely retweeted in China twitter: SINA WEIBO.COM
The photo is a glass door that hold back the water outside to prevent
the water come in to room.
The photo of laminated glass is here:

The photos of laminated glass tell us that, the laminated glass door
is very strong to hold so much water pressure. Second, the door
sealing is very good.

Some tweets of the laminated glass are:
Can China glass manufacturers produce such strong glass?
Why does the glass not break?
Is this laminated glass made in China?

Some guess, the laminated glass is PVB laminated glass, made of Dupont
SGP PVB interlayer.
China now have many manufacturer of PVB INTERLAYER FILM and EVA
interlayer film for laminated glass.
To produce the world-class one laminated glass for hurricane, there is
still a long way ahead.
There are many progress of modification of properties of PVB
interlayer film/ EVA interlayer film made, but there should be more
innovative progress in the future.

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