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jER™ YX4000

Sold by Mitsubishi Chemical Group Corporation
Polymer Name: Epoxy Resins & Compounds
Function: Adhesion Promoter, Binder, Coupling Agent
Chemical Family: Epoxy & Epoxy Derivatives
Compatible Substrates & Surfaces: Concrete, Glass, Fibers & Fabrics, Metal, Steel, Plastics, Aluminum, Ceramic
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Order Quantity
Available upon quote
Minimum Order Quantity
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Lead Time
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Available Incoterms
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Regional Availability
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TypeDocument Name
Technical Data Sheet
jER™ YX4000 Technical Data Sheet
jER™ YX4000 Technical Data Sheet
Technical Data Sheet
jER™ Epoxy Resin Series Brochure
jER™ Epoxy Resin Series Brochure
Safety Data Sheet
jER™ YX4000 Safety Data Sheet
jER™ YX4000 Safety Data Sheet
Safety Data Sheet

Knowde Enhanced TDS

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Identification & Functionality

jER™ YX4000 Features & Benefits

  • Highly adhesive to metal, porcelain, concrete
  • Excellent insulation property
  • High heat resistance
  • High chemical resistance
  • High water resistance
Product Highlights
  • Solid type (Flake)
  • Significantly low melt viscosity (Melting point: 108°C)
  • Good balance between adhesiveness and rigidity against stress.
  • Low chroline content
  • Low water absorption 

Applications & Uses


Physical Form
Yellow solids
Physical Properties
ValueUnitsTest Method / Conditions
Density (at 25°C)1.15g/cm3Pycnometer
Harsh Hydrolyzable Chloride400ppmPotentiometric Titration
Melting Point108°CDifferential Scanning Calorimetry
Typical Properties
ValueUnitsTest Method / Conditions
Epoxy Equivalent Weight (WPE)180 - 192g/eqPotentiometric Titration
Total Chloride Content1000ppm-
Properties Formulation

  Value Unit Method
jER™ YX4000 100 phr  
Phenol Novolac 56 phr  
Triphenylphosphine 1 phr  
Curing condition

120°C/2h + 175°C/6h

Cured State Properties
Tg 147 °C

Dynamic Mechanical Analysis

Elastic modulus@40°C 1.6 GPa

Dynamic Mechanical Analysis

Elastic modulus@250°C 18 MPa

Dynamic Mechanical Analysis

Coefficient of thermal elongation(α1) 70 ppm

Thermo Mechanical Analysis

Coefficient of thermal elongation(α2) 191 ppm

Thermo Mechanical Analysis

Td5 372 °C

Thermogravimetry-Differential, Thermal Analysis (Heating rate: 10°C/min, in air)

Technical Details & Test Data

Typical Reactions with Representative Hardeners

jER™ YX4000 - Typical Reactions With Representative Hardeners

Typical Reactions with Self Polymerization

jER™ YX4000 - Typical Reactions With Self Polymerization

Selection of Hardeners

Appropriate choice of Hardener for a desired curing temperature

jER™ YX4000 - Selection of Hardeners

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

 jER™ YX4000 - General Ways To Use Epoxy

Packaging & Availability

Packaging Type
Packaging Information
Paper bag 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™ YX4000 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.

jER™ YX4000
Mitsubishi Chemical Group Corporation