DR-7: Two Phase Epoxy Resin


 

 
   

Product Description

DR-7 is a medium viscosity two phase resin system that is designed for applications

that require ease of wetting.  This system is optimized for stiffness, toughness and adhesion.  DR-7 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

 

• High Performance Sailing and Offshore Boats

• Sailing Masts

• Drive Shafts

• Any application requiring an exceptional balance of compression and toughness

• Works very well on impregnation equipment.

 

 

 
   

 

Resin Properties

Morphology:  second elastomeric phase in continuous epoxy phase

Viscosity, cps @ 25oC

6,000-7,000

Epoxide Equivalent Weight (EEW)

180

Color (Gardener)

2 (max)

Weight per Gallon

9.5

 

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

Flexural Modulus, Msi @ RT

.52

Elongation @ Break, %

5.6

Hardness, Shore D

84

Glass Transition (Tg), oF

210oF

 

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

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