Name

EP1346

EP1582

EP1635

EP1640

EP1641

EP1660

Features / Advantages

Very Soft / Flexible Epoxy. Rubber like property offering flexibility and chemical stability.

Transparent epoxy potting or sealing for optical or Opto-Electronic Applications.

High Tg formulation for high temperature stability. Strong oil and chemical resistance

Very Low CTE formulation.  Excellent oil and chemical resistance

Thixotropic (non-sag) epoxy. Low CTE. Very strong bonding to many plastics and surfaces. Strong oil and chemical resistance.

High Voltage resistance. Low arching effect. Strong oil and chemical resistance.

Typical Application

For low stress bonding and flexible encapsulation. Bond to PBT, PPS, Nylon, PC, Phenolic & other difficult materials.

Applying on LED Glob-Top, Optical Lens & IR Lens, Fiber optical, Lens, Prism, Endoscopes or Light Guides, etc.

For applications that require high temperature stability in semiconductor and automotive electronics such as power devices and processors.

For applications that require extremely low CTE bonding such as silicone / ceramic bonding, ignition coil potting.

For severe thermal shock, vibration bonding applications. Structural bonding applications. Oil and media resistance applications.

For high voltage insulation seal or encapsulation. High voltage component bonding or coating.

Rheology

Flowable, Dispensable

Capillary flowable

Flowable, Dispensable

Flow. Good for Potting

Thixotropic (non-slump). Dispensable

Flowable, Dispensable

Appearance / Color

Light Brown or Grey Liquid

Transparent

Brown or Grey

Off White or Grey

Milky White Brown
Or Grey

Milky White or Grey

Part / Component

A/B = 2: 1

A/B =1:1

A/B = 1: 1

A/B = 1: 1

One Part

A/B =1:1

Viscosity @25C
(cps, after mixing)

8,000

11,000

12,000

15,000

120,000

12,000

Pot / Work life (hr)

8 hrs

60 min

45 min

60 min

8 hrs

45 min

Cure Rate

125C 60 min

RmT 8 hr
85C 15 min

150C 120 min

RmT 12 hr
125C 30 min

125C 45 min

125C 60 min

Storage

< 25C

< 25C

< 25C

< 25C

< – 40C

< 25C

Shelf Life

12 month @ 24C

12 month @ 24C

12 month @ 24C

12 month @ 24C

> 3 months @ –40C

6month @ 5C

Tg

< 75C

~ 50

155

105

120

125

CTE (ppm/C)
ASTM D3386-94

< 150

< 160 (above Tg)
< 80 (below Tg)

< 120 (above Tg)
< 60 (below Tg)

< 60 (above Tg)
< 18 (below Tg)

62 (above Tg)
19 (below Tg)

120 (above Tg)
60 (below Tg)

Modulus / Hardness

Shore A = 60

2.5 Gpa

3.5 Gpa

8.5 Gpa

7.8 Gpa

5.6 Gpa

Volume Resistivity
(Ohm-cm)

> 10E12

>10E12

>10E12

>10E12

>10E12

> 10E12

Dielectric Strength (V/mil)

> 400 V/mil

400 V/mil

450 V/mil

500 V/mil

500 V/mil

> 800 VAC/mil

Adhesion
(Al/Al Lap Shear)

> 500 psi

> 1600 psi

> 1500 psi

> 1800 psi

> 1800 psi

> 1600 psi