D.E.N.® 438-A85

D.E.N.® 438-A85 is a solution of a semi-solid reaction product of epichlorohydrin and phenol-formaldehyde novolac in acetone.

Principal: Olin Epoxy

Chemical Family: Epoxy & Epoxy Derivatives, Novolac Epoxy

Polymer Name: Epoxy Resins & Compounds

End Uses: Can Coatings, Coil Coating, Electrical Laminates, Photocure Coating, Pipe Coating, Pipes, Protective Coatings, Structural Adhesive, Tank Linings

Features: Acid Resistant, Chemical Resistance, Corrosion Resistance, Excellent Strength, Good Solvent Resistance, High Cross-Link Density, High Reactivity, High Temperature Application, High Viscosity, Low Shrinkage, Solvent Resistance, Thermal Stability

Enhanced TDS

Identification & Functionality

Blend
No
Chemical Family
Country of Origin
Function
Resins, Binders & Matrix Materials, Binder
Polymer Name
Product Code
MITM03888
Product Functions
Single Ingredient
Yes
Technologies
Product Families

Features & Benefits

Labeling Claims
Product Features
Key Features
  • D.E.N.® 438-A85 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 have been developed.
  • D.E.N.® 438-A85 Resin has multi-epoxy functionality (± 3.6).
  • These additional reactive sites produce tightly cross-linked cured systems.
  • D.E.N.® 438-A85 Epoxy Novolac Resin is used alone or in combination with bisphenol A based epoxy resins in solution formulations where ease of mixing and processing is required. The thermal stability offered by epoxy novolac resins is a widely accepted asset in pre-preg manufacture for electrical laminates where they improve the resistance to hot solder as well as elevated temperature service.
  • They are also used in coating applications where an increased corrosion/chemical resistance is desired.

Applications & Uses

Properties

Physical Form

Packaging & Availability

Packaging Type

Principal Information

Group Principal Number
S002520
Principal

Other

Appearance (SDS)
Liquid
Color (SDS)
Yellow
IATA/ICAO Proper Shipping Name
Resin solution
IATA/ICAO UN Number
UN1866
IMO/IMDG Proper Shipping Name
Resin solution
IMO/IMDG UN Number
UN1866
Item Number
Material Compatibility
Odor (SDS)
Acetone
Other Hazards
Static -accumulating flammable liquid.
Processing & Application Methods
Protect from Freezing
Yes
Temperature Control
Yes
USA/DOT Proper Shipping Name
Resin solution
USA/DOT UN Number
UN1866
Chemical Properties
ValueUnitsTest Method / Conditions
Epoxide Equivalent Weight176.0-181.0g/eqASTM D1652
Material Composition
ValueUnitsTest Method / Conditions
Solid Content84.0-86.0%ASTM E203
Optical Properties
ValueUnitsTest Method / Conditions
Color Scale2.0Pt-Co2b889752-a817-4a6e-bd49-029825e637fd
Physical Properties
ValueUnitsTest Method / Conditions
Density1.14g/cm³ASTM D4052 at 25°C
Storage Temperature35.6-109.4°F
Viscosity500.0-1200.0mPa.sASTM D445 at 25°C, absolute
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Boiling Point (SDS)56.0°C
Flash Point (SDS)-20.0°CClosed Cup
Lower Explosion Limit (SDS)2.5%(V)
Relative Density (SDS)1.14-Water = 1
Relative Vapor Density (SDS)2.0-air =1
Upper Explosion Limit (SDS)13.0%(V)
Vapor Pressure (SDS)181.7mm Hgat 20°C​
Viscosity (SDS)500.0-1200.0mPa.sASTM D445 at 25°C
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life730.0d