D.E.N.® 428

D.E.N.® 428 is a liquid reaction product of epichlorohydrin and phenol-formaldehyde novolac.

Principal: Olin Epoxy

Chemical Family: Epoxy & Epoxy Derivatives, Novolac Epoxy

Polymer Name: Epoxy Resins & Compounds

End Uses: Protective Coatings

Processing Methods: Casting, Encapsulation, Potting

Features: High Reactivity, High Temperature Performance, Improved Chemical Resistance, Improved Gap Filling Properties, Increased Mechanical Strength, Thermal Stability

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Enhanced TDS

Identification & Functionality

Blend
No
CASE Ingredients Functions
Chemical Family
Chemical Name
Composite Materials Functions
Function
Resins, Binders & Matrix Materials, Binder
Polymer Name
Product Code
MITM10920
Single Ingredient
Yes
Technologies
Product Families

Features & Benefits

CASE Ingredients Features
Key Features
  • D.E.N.® 428 Epoxy Novolac Resin is an epoxidized phenolic resin of higher functionality than standard bisphenol A based liquid epoxy resins.
  • Epoxy novolac resins combine, in one molecule, the thermal stability of a phenolic backbone with the reactivity and versatility of an epoxy.
  • They are distinguished by particular good thermal stability, mechanical strength and resistance against chemicals.
  • They find ready acceptance for lining pipelines, storage tanks and pumps.
  • D.E.N.® 428 Epoxy Novolac Resin has been developed to fill the gap between the two functional standard bisphenol F based liquid epoxy resins and the high viscous epoxy novolac resins.
  • The multi-functionality, ± 2.8 epoxy groups per mole, of D.E.N.® 428 Epoxy Novolac Resin produces a more tightly cross-linked cured system than bisphenol A based liquid epoxy resins having improved high temperature performance and improved resistance against various chemical.
  • D.E.N.® 428 Epoxy Novolac Resin can be formulated to fully cure at ambient temperatures with the corresponding curing agents without the need of additional heat cure.

Applications & Uses

Properties

Physical Form

Packaging & Availability

Packaging Type

Principal Information

Group Principal Number
S002520
Principal

Other

Appearance (SDS)
Liquid
Color (SDS)
Yellow to brown
Flammable Nature (SDS)
Not expected to be a static accumulating flammable liquid
IATA/ICAO Proper Shipping Name
Environmentally hazardous substance, liquid, N.O.S. (epoxy resin)
IATA/ICAO UN Number
UN3082
IMO/IMDG EmS Fire
F-A
IMO/IMDG EmS Spill
S-F
IMO/IMDG Proper Shipping Name
Environmentally hazardous substance, liquid, (epoxy resin)
IMO/IMDG UN Number
UN3082
Item Number
Odor (SDS)
Mild
Other Hazards
None known
Protect from Freezing
Yes
UNRTDG Proper Shipping Name
Environmentally hazardous substance, liquid, (epoxy resin)
UNRTDG UN Number
UN3082
USA/DOT UN Number
Not Applicable
Optical Properties
ValueUnitsTest Method / Conditions
Color Scalemax. 250.0 Pt-CoPt-Co2b889752-a817-4a6e-bd49-029825e637fd
Chemical Properties
ValueUnitsTest Method / Conditions
Epoxide Equivalent Weight168.0-178.0 g/eqg/eqASTM D1652
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life730.0 dd
Physical Properties
ValueUnitsTest Method / Conditions
Density1.2 g/cm³g/cm³ASTM D4052 at 25°C
Storage Temperature35.6-109.4 °F°F
Viscosity35000.0-45000.0 mPa.smPa.sASTM D445 at 25°C, absolute
Material Composition
ValueUnitsTest Method / Conditions
Hydrolysable Chloride Contentmax. 1200.0 ppmppmASTM D1726
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Flash Point (SDS)min. 392.0 °F°FDIN 51584
Relative Density (SDS)1.2-
Solubility In Water (SDS)max. 10.0 g/Lg/LAt 77°F
Viscosity (SDS)39500.0 mPa.smPa.sASTM D445 at 25°C