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jER™ YX4000
jER™ YX4000 is a highly adhesive, bisphenol-type solid epoxy resin with significantly low melt viscosity, low water absorption, and rigidity against stress. It is used as the standard for EMC thin-package applications and electrical applications.
Documents
- Manufacturer: Mitsubishi Chemical Group
- Product Line: jER™ Epoxy Resins
- Product: jER™ Thermosetting Epoxy Resins
- Industries: Adhesives | Coatings | Maintenance, Repair, Overhaul
- Authorized Countries: United States
Fulfilled By ChemPoint
Fulfilled By ChemPoint
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Authorized Countries
United States
Overview
jER™ YX4000 is a bisphenol-type solid epoxy resin made from the reaction of epichlorohydrin and tetramethyl bisphenol. It has a significantly low melt viscosity, low water absorption, and good adhesive and rigidity balance against stress, making it appropriate for applications such as electrical and electronic, thin-package EMC, potting and encapsulation materials, powder coatings for ship bottoms, adhesives, and composites. It also exhibits excellent abrasion, good adhesion, and heat, wear, water, and electrical resistance. This resin is supplied in flake form.
Specifications
Epoxy equivalent weight (WPE): 180–192 g/eq
Melting point (°C): 108
Appearance: Yellow solid
Harsh hydrolyzable Cl: 400 ppm
Density at 25°C: 1.15 g/cm3
Cured State Properties:
Tg: 147°C
Elastic modulus @ 40°C: 1.6 GPa
Elastic modulus @ 250°C: 18 MPa
Coefficient of thermal expansion (α1): 70
Coefficient of thermal expansion (α2): 191
Td5: 372°C
Cured State Properties Formulation:
jER™ YX4000: 100 phr
Phenol novolac: 56 phr
Triphenylphosphine: 1 phr
Curing condition: 120°C/2 hr + 175°C/6 hr
CAS: 85954-11-6
Features & Benefits
- Bisphenol-type solid epoxy resin
- Abrasion, heat, and water resistance
- Electrical insulation
- Wear resistance
- Significantly low melt viscosity
- Low chlorine content
- Low water absorption
- Good balance between adhesiveness and rigidity against stress
- Highly adhesive to metal, porcelain, and concrete
Problems Solved
Damage to coatings caused by exposure to weather, chemicals, or water Resin shifting or distortion from water Cracking and surface defects of coatings used on flexible substrates
Applications
Compatible with metal, aluminum, concrete, masonry, glass, fibers, fabrics, plastics, steel, and ceramic Electrical and electronic applications (EMC, solder resist, PCB) Highly adhesive to metal, porcelain, and concrete Potting and encapsulation materials Powder coatings for ship bottoms Adhesives Composites Thin-package EMC as de facto standard
Related Applications
Adhesives
- Architectural
- Ceramics
- Industrial
- Machinery & Appliances
- Packaging
- Paper & Consumables
- Sealants
- Textiles
Related Chemistries
Maintenance, Repair, Overhaul
Related Functions
Related Technologies
Adhesives
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