Silicone Adhesives  
 Epoxy Adhesives   
 Thermal Management  
 Coating and Potting  
 Sealing Applications   
 Contact Us   

 Contact in North America,
Europe, & Worldwide
 Phone: +1 (224) 436-0077 
Fax: +1 (630) 621-4198
 sales@UnitedAdhesives.com 

Contact in China and Asia 
High & New Technology
Industrial Development Park
6-1023 Tianzhu Rd.
Hefei City, China
  Phone: +86 139 5605 4600 
Fax: +86 0551 267 5968
 china@UnitedAdhesives.com 

 

 

  Products  
  About Us   
Chinese Version


 
  
       Flexible Epoxy Adhesives

 

United Adhesives provides epoxy adhesives that have flexibility like rubber. The rigidity varies from about Shore 25A to 85A. Customer can select desired softness for their designs to minimize the thermal and mechanical stresses.

Flexible epoxy adhesives combine the epoxy’s strong adhesion to various substrates and the softness of rubber like silicones. They can be applied for bonding electronic components, sealing, coating, or encapsulating electronic devices, parts, and cavities such as BGA, chip-on-board, bare die, CSP etc. They also provide superior vibration dampening. Optical clear flexible epoxy adhesive is also available for optoelectronic applications
.


 

Name

EP1346

EP1388

SE1261

SE1262

SE1351

Chemical Base

Flexible Epoxy

Flexible Epoxy

Flexible Epoxy

Flexible Epoxy

Epoxy-silicone copolymer

Features / Advantages

Impregnating type flexible epoxy. Thermal cure to form dielectric protective coating or potting.

Two-component, dispensable, rubber-toughened epoxy.

Flexible underfill or encapsulant.  One-component. Readily flowable.

Flexible underfill or encapsulant.  Two-component. Readily flowable.

Optical clear flexible epoxy adhesive. High bonding Strength. Room temperature curable.

Typical Application

Pot / encapsulate parts & cavities. Coat electronic parts. Vibration dampening. Thermal stress coupling

Encapsulate parts & cavities. Seal housings, lids. Coat electronic parts. Vibration dampening Thermal stress coupling

For under-filling or encapsulating electronic parts and components such as BGA, chip-on-board, bare die, CSP etc.

For under-filling or encapsulating electronic parts and components such as BGA, chip-on-board, bare die, CSP etc.

Applying on LED glob-top, optical lens & IR lens, fiber optical, lens, prism, endoscopes or light guides, etc.

Rheology

Very thin. Capillary Flowable

Dispensable

Capillary flowable

Capillary flowable

Dispensable

Appearance / Color

Translucent / Amber

Amber

Blue

Blue

Transparent / Clear

Part / Component

A/B = 2: 1

A/B =1:1

One part

A/B =1:1

One part

Viscosity @25C (cps, after mixing)

8,000

85,000

6,000

1,200

35,000

Pot / Work life (hr)

8 hrs

12 hrs

48 hrs

12 hrs

36 hrs

Cure Rate

125C 30 min

125C 60 min

125C 30 min

125C 30 min

25C 6 to 8 hrs
125C 15 min

Storage

< 25C

< 25C

- 40C

< 25C

- 40C

Shelf Life

12 months @ 25C

12 months @ 25C

3 months @ -40C

12 months @ 24C

3 months @ -40C

CTE (ppm/C)
ASTM D3386-94

150

130

140

140

120

Modulus or Hardness

Shore A = 60

Shore A = 85

Shore A = 25

Shore A = 32

Shore A = 58

Volume Resistivity
(Ohm-cm)

> 10E12

> 10E12

> 10E13

>10E13

> 10E+12

Dielectric Strength (V/mil)

> 480 V/mil

> 400 V/mil

> 400 V/mil

> 400 V/mil

500 V/mil

Adhesion
(Al/Al Lap Shear)

> 500 psi

> 700 psi

> 200 psi

> 200 psi

> 600 psi

   
United Adhesives Inc.
Together, we will win the future!


Copy Right 2010 ©

All rights reserved