ER-4: High Performance Epoxy Resin


 

 
   

Product Description

ER-4 is a high performance single phase resin system that is designed

for applications where high modulus and low viscosity are important.  ER-4 resin system works well on all fiberglass, carbon, and Kevlar reinforcements.

Processing

Mix resin and hardener thoroughly at specified ratio.  Resin can be heated slightly to lower viscosity.  Do not expose resin or hardener

 to excessive moisture conditions until fully cured.  Post-cure resin to 160oF to achieve maximum cure and composite strength.  In cases

of free standing post-cures, the part should be heated slowly

(20-30oF per 30 minute steps) to prevent warpage.

Applications

• Marine and hand laminating projects

• Filament winding

• RTM processes

• Chemical resistant coatings

Viscosity is low enough to allow exceptional wetout at room temperature. 

Hardeners

• EH-101, 102, 103 or 104 laminating hardeners

 

If application requires high delamination resistance, two phase ‘DR’ series resins should be considered.

Resin Properties

Morphology:  single continuous epoxy phase

Viscosity, cps @ 25oC

1,500-1,800

Epoxide Equivalent Weight (EEW)

180

Color (Gardener)

2 (max)

Weight per Gallon

9.5-9.6

 

Neat Resin Properties (Cured with EH-102, 24 hours @ RT, 2 hours @ 160oF)

Flexural Modulus, Msi @ RT

.47

Elongation @ Break, %

5.0

Hardness, Shore D

85

Glass Transition (Tg), oF

190oF

 

All data given is believed to be accurate based on the material tested.  Since the processing and testing is application and user specific, API has no assurance of how the product will be used and therefore cannot make any guarantees as to these properties or the final performance.

Address:  Applied Poleramic Inc.       Phone:  (707) 747 – 6738    Fax: (707) 747 – 6774     Email: [email protected]

                  6166 Egret Court              

                  Benicia, CA 94510

Back to General Purpose Epoxies