D.E.R.® 321

D.E.R.® 321 liquid epoxy resin is a reaction product of epichlorohydrin and bisphenol a modified with an aromatic mono-functional reactive diluent.

Principal: Olin Epoxy

Chemical Family: Bisphenol A Type Epoxy, Epoxy & Epoxy Derivatives

End Uses: Tooling Systems

Features: Acid Resistant, Crystallization Resistance, Low Degree of Crystallinity, Solvent Resistance

Enhanced TDS

Identification & Functionality

Blend
No
Chemical Family
Country of Origin
Function
Binder, Binders & Matrix Materials, Resins
Product Code
MITM03897
Product Functions
Single Ingredient
Yes
Technologies
Product Families

Features & Benefits

Labeling Claims
Product Features
Additional Information
  • D.E.R.® 321 Liquid Epoxy Resin is ortho-cresyl glycidyl ether diluted standard bisphenol A based liquid epoxy resin, of extremely low viscosity.
  • The low viscosity is advantageous in compounds containing large amounts of filler. D.E.R.® 321 Resin has a cure rate similar to unmodified bisphenol A based liquid epoxy resins.
  • The reactive diluent contained in D.E.R.® 321 Epoxy Resin limits somewhat the solvent resistance, however, an improved acid resistance can be observed using D.E.R.® 321 Epoxy Resin in stead of D.E.R.® 321 Liquid Epoxy Resin.
  • D.E.R.® 321 Liquid Epoxy Resin exhibits a very low tendency to crystallize.
  • D.E.R.® 321 Epoxy Resin can be hot or cold cured by blending with polyamine, polyamide and modified versions of these.
  • Elevated temperature cures are necessary and post-cures required to develop full end properties if anhydride or catalytic curing agents are employed.

Applications & Uses

Packaging & Availability

Packaging Type

Principal Information

Group Principal Number
S002520
Principal

Other

Color (SDS)
Yellow or brown
IATA/ICAO Proper Shipping Name
Environmentally hazardous substance, liquid, N.O.S. (epoxy resin)
IATA/ICAO UN Number
UN 3082
IMO/IMDG Proper Shipping Name
Environmentally hazardous substance, liquid, N.O.S. (epoxy resin)
IMO/IMDG UN Number
UN 3082
Item Number
Odor (SDS)
Mild
Processing & Application Methods
Protect from Freezing
Yes
Temperature Control
Yes
USA/DOT UN Number
Not Applicable
Chemical Properties
ValueUnitsTest Method / Conditions
Equivalent Weight180.0-188.0g/eqASTM D1652
Optical Properties
ValueUnitsTest Method / Conditions
Color Scalemax. 3.0GardnerASTM D1544
Color Scalemax. 3.0GardnerGardner Color Scale
Physical Properties
ValueUnitsTest Method / Conditions
Density1.14g/cm³ASTM D4052 at 25°C
Storage Temperaturemax. 77.0°F
Viscosity500.0-700.0mPa.sASTM D445 at 25°C
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Decomposition Temperature (SDS)min. 320.0°C
Density (SDS)1.14g/cm³ASTM D1475 at 25°C, liquid
Flash Point (SDS)121.0°CASTM D93
Flash Point (SDS)121.0°CPensky-Martens Closed Cup (PMCC)
Freeze Point (SDS)max. -15.0°C
Specific Gravity (SDS)1.11-1.16-Water = 1
Viscosity (SDS)500.0-700.0mPa.sASTM D445 at 25°C
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life24.0mo