jER™ YL980 is is a Bisphenol A-type liquid epoxy resin with very low chlorine content. It can be used for electrical and electronic applications (Sealant, casting agent, adhesives, and so on).


  • Excellent adhesiveness
  • Maintains high electrical reliability


  • Chemical, heat and water resistant
  • Electrical insulating properties
  • Significantly low chlorine content (below 500 ppm)


  • Electrical and electronic applications
  • Potting & encapsulation materials
  • Adhesives

*jER™ is provided by Mitsubishi Chemical Corporation, a member of the Mitsubishi Chemical Group.

Polymer NameEpoxy Resins & Compounds

FunctionsAdhesion Promoter, Binder & Resin, Coupling Agent, Resin, Resins, Binders & Matrix Materials

Chemical FamilyBisphenol A Type Epoxy, Bisphenol Epoxy Resins, Epoxy & Epoxy Derivatives

End UsesSemiconductor Applications, Underfill

Compatible Substrates & SurfacesAluminum, Ceramic, Concrete, Fibers & Fabrics, Glass, Metal, Plastics, Steel

FeaturesAbrasion Resistance, Chemical Resistance, Chemical Resistant, Electrically Insulating, Excellent Electrical Insulation, Flame Retardant, Good Electrical Properties, Good Mechanical Properties, Heat Resistance, Improved Dimensional Stability, Improved Flexibility, Low Chlorine Content, Reduced Wear, Water Resistance, Water Resistant

Knowde Enhanced TDS

Identification & Functionality

Plastics & Elastomers Functions
Molecular Structure

Mitsubishi Chemical jER YL980 Molecular Structure

Features & Benefits

  • Highly adhesive to metal, porcelain, concrete
  • Excellent insulation property
  • High heat resistance
  • High chemical resistance
  • High water resistance
Product Highlights
  • Liquid type 
  • Significantly low chlorine content (below 500ppm)

Applications & Uses

Adhesive & Sealant Type
Plastics & Elastomers End Uses
Usage & Application

jER™ YL980 is used for Electrical and electronic applications(Sealant, casting agent, adhesives, and so on).


Physical Form
Pale yellow transparency
Physical Properties
ValueUnitsTest Method / Conditions
Density (at 25°C)1.17g/cm3Density Meter (Vibration type)
Typical Properties
ValueUnitsTest Method / Conditions
Epoxy Equivalent Weight (WPE)180 - 190g/eqPotentiometric Titration
Harsh Hydrolyzable Chloridemax. 150ppmPotentiometric Titration
Viscosity (at 25°C)100 - 200PCapillary Viscometer
Total Chloride Content300ppm

Technical Details & Test Data

Typical Reactions with Representative Hardeners

jER™ YL980 - Typical Reactions With Representative Hardeners

Typical Reactions with Self Polymerization

jER™ YL980 - Typical Reactions With Self Polymerization

Selection of Hardeners

Appropriate choice of Hardener for a desired curing temperature

jER™ YL980 - Selection of Hardeners

General Ways to Use Epoxy
  • Epoxy resin forms 3D crosslinked network structure
  • Abundant choices of Epoxy/Hardener combination

 jER™ YL980 - General Ways To Use Epoxy

Packaging & Availability

Packaging Type
Packaging Information
Metal can with 20 kg net

Storage & Handling

Shelf Life
3 months
Storage and Handling

Carefully read the SDS before using, handling, transporting, storing or disposing. jER™ YL980 should be stored in tightly closed containers under exclusion of humidity at gentle temperatures. Avoid exposure to direct sunlight. Under these storage conditions the product has a minimum shelf life of three months from date of delivery.