HONGKONG GUOELEPHANT GROUP LIMITED

UV adhesive for touch screen

Item No.

Products' features and typical usage

4021-38

High transmittance, high index of refraction, good weatherability, won’t turn to be yellow for a long time; Neutral formula, anti-corrosion ITO coating; Superior electric performance, won’t influence the operation speed of touch screen for a long time, easy for repairing with low hardness; Various viscosity choice, suitable for automation equipment production and manual joint, easy to apply; Have a good adhesive strength to ITO glass, and PET material, etc. Typical applications in capacitive, resistive touch screen joint industry.

4021-41

Status

4021-38

4021-41

Before UV curing

Liquid Color

Clear and colorless liquid

Clear and colorless liquid

Viscosity(cps, tested under 25℃)

2000-2500

1000-1500

Proportion(g/cm3)

1.05

1.05

PH value

6.8~7

6.8~7

During UV curing

setting time/sec'

12

12

Solid energy (mj/cm2)

3000

3000

After UV curing

Hardness

Shore A

35

35

Shore D

/

/

Pencil

/

/

Shrinkage rate(%)

2.0

2.2

Bibulous rate(%)

0.2

0.2

temperature-resistant scope(℃)

-40~200

-40~200

Polymer content(%)

100

100

Tensile strength (MPa)

>100

>100

Shear strength(MPa)

/

/

Peel strength (Kgf/cm2)

/

/

Elongation at break(%)

/

/

Light transmittance (%)

>98

>97

Refractive index

1.49

1.48

Elastic modulus

-40℃

2.8×107Pa

25℃

4.5×105Pa

Dielectric constant (1MHz)

3.9

3.9

Dielectric loss(1MHz)

0.02

0.02

Dielectric strength (KV/MM)

20

20

Surface resistivity(Ω.cm)

6.5×1015

6.5×1015

Volume resistivity(Ω.cm)

7.0×1015

7.0×1015

Spec

50ml/jar、 1kg/bottle

Shelflife

One Year(Seal storage and comply with storage conditions.)

Notes

1. Storage under 8℃－25℃, in the dark, sealing, ventilation, cool conditions, and far away from children.

2. Keep air ventilation when using, and take the safe protection measures, such as don't use your skin to touch the resin directly or longly.

Remarks

1.) Viscosity standard： Tested under 25℃±0.5, by using the container with diameter 6-7cm, and height 10cm.

2.) The setting time of above items were tested under the condition of glass bond glass with 40w and light intensity is under 7.5mW/cm2.                                                                                                                                          3.) Above tensile & shear strength data tested when glass bond glass, glass bond crystal.

4.) Other test parameters are tested on the basis of the national testing.