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OPTICALLY CLEAR ADHESIVES

 EPOXYSET'S optical grade epoxy adhesives are designed to provide the good adhesion, transparency and refractive index for many optical applications such as lenses laser windows, LEDs, prisms, and photodiodes etc. They are also useful for many fiber optic applications. These optical grade epoxies provide excellent moisture and temperature resistance, high bond strength, and good impact strength.

 

EPOXIBOND

EB-106

EB-106LP

EB-107

EB-109

EB-110

EB-112LV-2

Hardener

EH-21

EH-21LP

EH-21

EH-21

EH-9

EH-7M

Mix ratio by weight (Adhesive/Hardener)

100/30

100/30

100/30

100/25

100/13

100/30

Mixed Viscosity @ 25C

cp

300

300

150

150

2250

150

Pot life @ 25C

(100 grams)

Minutes

30

>4 hours

30

60

30

>8 hours

Recommended Cure

Hours/C

3/65

3/65

3/65

3/65

2/100

2/100

Alternate Cure

Hours/C

24/25

48/25

24/25

48/25

24/25

1 hr @ 150C

TYPICAL CURED PROPERTIES:

Color

 

Clear

Clear

Clear

Clear amber

Clear

Clear

Specific Gravity

 

1.1

1.1

1.1

1.1

1.1

1.12

Hardness

Shore

D-80

D-80

D-80

D-70

D-90

D-89

Refractive Index

 

1.56

1.565

1.54

-

1.554

1.542

Water Absorption

(24 hrs immersion @ 25C)

%

0.17

0.18

0.17

0.28

0.31

0.2

Lap Shear Strength

Psi

2700

2400

2700

2200

2000

2100

Glass Transition Temperature

C

65

62

65

55

120

130

Coefficient of Thermal Expansion

10-6/C

59

59

59

66

52

52

Service Temperature Range

C

-55 to 90

-55 to 90

-55 to 90

-55 to 90

-55 to 120

-55 to 150

Flexural Strength

Psi

13500

13200

13500

10500

13900

19500

Flexural Modulus

Psi

3.2 x 105

2.9 x 105

3.2 x 105

2 x 105

4.4 x 105

3.4 x 105

Dielectric Strength

Volts/mil

450

480

450

420

450

430

Dielectric Constant

@ 1 kHz

4.14

3.9

4.14

4.1

3.9

3.8

Dissipation Factor

@ 1 kHz

0.012

0.01

0.012

0.01

0.02

0.01

Volume Resistivity

Ohm-cm

8x1014

8x1014

8x1014

1x1014

6x1015

2x1015

 DISCLAIMER: All data given here is offered as a guide to the use of these materials and not as a guarantee of their performance. The user should evaluate their suitability for own purposes. Properties are typical and should not be used in preparing specifications. Statements are not to be construed as recommendations to infringe any patent.