D.E.N.® 438L

D.E.N.® 438L is a semi-solid 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: Can Coating, Coil Coating, Electrical Laminates, Pipe Coating, Protective Coatings, Structural Adhesive, Tank Lining

Compatible Substrates & Surfaces: Abrasive, Aramid, Carbon Fiber, Fiberglass, Glass Fiber, Mica

Processing Methods: Casting, Encapsulation, Potting

Features: Acid Resistance, Chemical Resistance, Corrosion Resistance, High Cross Linked Density, High Reactivity, High Strength, High Temperature Performance, High Viscosity, Low Shrinkage, Solvent Resistance, Thermal Stability

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Enhanced TDS

Identification & Functionality

Blend
No
CASE Ingredients Functions
Binder & Resin
Chemical Family
Epoxy & Epoxy Derivatives,
Novolac Epoxy
Chemical Name
Phenol polymer with formaldehyde glycidyl ether
Composite Materials Functions
Resins, Binders & Matrix Materials
Country of Origin
Germany
Function
Resins, Binders & Matrix Materials, Binder
Polymer Name
Epoxy Resins & Compounds
Product Code
MITM03890
Single Ingredient
Yes
Technologies
CASE,
Composite Materials
Product Families
CASE — Resins & Binders
Epoxies
Composite Materials — Polymers & Resins
Thermoplastic Resins

Features & Benefits

CASE Ingredients Features
Acid Resistance,
Chemical Resistance,
Corrosion Resistance,
High Cross Linked Density,
High Reactivity,
High Strength,
High Temperature Performance,
High Viscosity,
Low Shrinkage,
Solvent Resistance,
Thermal Stability
Materials Features
Acid Resistant,
Chemical Resistant,
Corrosion Resistant,
Excellent Strength,
Good Solvent Resistance,
High Cross-Link Density,
High Viscosity,
Low Shrinkage
Key Features
  • D.E.N.® 438L Epoxy Novolac Resin is a general purpose, widely used epoxy novolac resin.
  • It is recognized as a standard for high temperature applications from which variations havebeen developed.
  • D.E.N.® 438L Resin has multi-epoxy functionality (±3.6).
  • These additional reactive sites produce tightly cross-linked cured systems.
  • This makes D.E.N.® 438L Epoxy Novolac Resin useful in adhesives, structural laminates, coatings and castings for elevated temperature service.
  • The thermal stability of a phenolic backbone with the reactivity and versatility of a bisphenol A epoxy resin are combined in D.E.N.® 438L Epoxy Novolac Resin.
  • Laminates can be made using D.E.N.® 438L Epoxy Novolac Resin in combination with mica,synthetic glass-fiber or fiberglass reinforcement.

Applications & Uses

Adhesive & Sealant End Applications
Structural Adhesive
Application Area
Pipes,
Tank Lining
Coating End Applications
Can Coating,
Coil Coating,
Pipe Coating,
Protective Coatings,
Tank Lining
Compatible Substrates & Surfaces
Abrasive,
Aramid,
Carbon Fiber,
Fiberglass,
Glass Fiber,
Mica
Composites End Use
Electrical Laminates
Composites Processing Methods
Casting,
Encapsulation,
Potting
Markets
Electrical & Electronics,
Paints & Coatings
Applications
Electrical & Electronics — Packaging & Assembly
Potting Compounds
Paints & Coatings — Automotive & Transportation
Marine Coatings
Paints & Coatings — Industrial Coatings
Coil Coatings,
Industrial Coatings
Paints & Coatings — Packaging Coatings
Can Coatings

Properties

Physical Form
Liquid

Packaging & Availability

Packaging Type
Drums

Principal Information

Group Principal Number
S002520
Principal
Olin Epoxy

Other

Color (SDS)
Yellow to brown
IATA/ICAO Proper Shipping Name
Environmentally hazardous substance, liquid, N.O.S. (epoxy resin)
IATA/ICAO UN Number
UN3082
IMO/IMDG Proper Shipping Name
Environmentally hazardous substance, liquid, N.O.S. (epoxy resin)
IMO/IMDG UN Number
UN3082
Item Number
ITM07178
Odor (SDS)
Mild
Other Hazards
No data available
Protect from Freezing
Yes
Temperature Control
Yes
USA/DOT UN Number
Not Applicable
Chemical Properties
ValueUnitsTest Method / Conditions
Epoxide Equivalent Weight176.0-181.0 g/eqg/eqASTM D1652
Material Composition
ValueUnitsTest Method / Conditions
Hydrolysable Chloride Contentmax. 1500.0 ppmppmASTM D1726
Optical Properties
ValueUnitsTest Method / Conditions
Color Scale250.0 ASTMASTM2b889752-a817-4a6e-bd49-029825e637fd
Physical Properties
ValueUnitsTest Method / Conditions
Density1.22 g/cm³g/cm³ASTM D4052 at 25°C
Storage Temperature35.6-109.4 °F°F
Viscosity28000.0-33000.0 mPa.smPa.sASTM D445 at 52°C, absolute
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Boiling Point (SDS)min. 245.0 °C°C
Flash Point (SDS)218.0 °C°CClosed Cup
Relative Density (SDS)1.22-Water = 1
Solubility In Water (SDS)max. 1.0 %%at 25°C
Vapor Pressure (SDS)max. 20.0 mm Hgmm Hgat 20°C​
Viscosity (SDS)27500.0-32500.0 cPscPsASTM D445 at 51.7°C
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life24.0 momo