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D.E.N.™ 439

D.E.N. 439 Epoxy Novolac Resin is a general purpose, widely used epoxy novolac resin that has multi-epoxy functionality (±3.8) and is recognized as a standard for high temperature applications. This product also produces tightly cross-linked cured systems.

Used in:

  • Casting and Tooling
  • Composites
  • Coil Coating
  • Marine and Protective Coatings
  • Potting and Encapsulation

Advantages:

  • Excellent for high temperature applications
  • Offers multi-epoxy functionality (± 3.8)
  • Produces tightly cross-linked cured systems
  • Excellent thermal stability
  • Good reactivity and versatility

Typical Physical Properties
These properties are typical but do not constitute specifications.

Property

Value

Method

Epoxide Equivalent Weight (g/eq)

191 – 210ASTM D-1652

Epoxide Percentage (%)

20.5 – 22.5

ASTM D-1652

Epoxide Group Content (mmol/kg)

4760 – 5240

ASTM D-1652

Color (Gardner)

3 Max.

ASTM D-1544

Viscosity @ 25°C (mPa•s)

4000 – 10000(1)

ASTM D-445

Viscosity @ 71°C (mPa•s)

15000 – 35000

ASTM D-445

Density @ 25°C (g/ml)

1.22

ASTM D-4052

Softening Point (°C)

48 – 58

ASTM D-3104

Shelf Life (Months)

24

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