jER™ 4250
- CASE Ingredients Features
- Chemical ResistanceExcellent AdhesionExcellent Electrical InsulationGood Film FormerGood ToughnessHeat ResistanceImproved FlexibilityWater Resistance
- Chemical Family
- Epoxy & Epoxy Derivatives
jER™ 4250 is a hybrid bisphenol A/bisphenol F-type epoxy resin that is more flexible than conventional polymer-type epoxy resins. It can be used as an additive to add toughness, insulating and vapor barrier properties and resistance to heat, water and chemicals to a variety of applications. FeaturesPolymer-type epoxy resin with epoxy functional groups at the both endsHigh molecular weightHigh softening points Good adhesionApplicationsPCM, CAN and other coatingsPaintThermoplastics Printed electronics Plastic processing *jER™ is provided by Mitsubishi Chemical Corporation, a member of the Mitsubishi Chemical Group.
Properties
- Physical Form
- Pellets
- Solid
Identification
- CASE Ingredients Functions
- Adhesion PromoterBinder & ResinCoupling AgentPlasticizer
Product families
Applications
- Adhesives & Sealants — Other Adhesives & Sealants Applications
- Metal Coatings
- Electronics Coatings
- Can Coatings
- Can Coatings
- Electronics Coatings
Product Families
- Thermoset Resins
- Epoxies
- Epoxies
Other characteristics
- Brand
- jER™ Epoxy
- Functions
Adhesion Promoter, Binder & Resin, Coupling Agent, Impact Modifier, Plasticizer, Resin, Resins, Binders & Matrix Materials
- Polymer Name
- Epoxy Resins & Compounds
- Compatible Substrates & Surfaces
Aluminum, Ceramic, Concrete, Fibers & Fabrics, Glass, Metal, Plastics, Steel
- Note
- *based on Mitsubishi Chemical test methods.
- Markets
- Adhesives & Sealants
- Electrical & Electronics
- Paints & Coatings
- Printing & Packaging
- Features
- Highly adhesive to metal, porcelain, concrete
- Excellent insulation property
- High heat resistance
- High chemical resistance
- High water resistance
- Appearance
- Pale yellow solid
- Shelf LIfe
- 3 months
- Cure
- Chemical Cure
- Technology
- CASE Ingredients
- Composite Materials
- Plastics
- Packaging Type
- Bags
- Application and Use
jER™ 4250 is used for coatings (PCM, CAN, and so on) , adhesives.
- Color
- Yellow
- Material Features
- Good Paint Adhesion
- Good Toughness
- High Molecular Weight
- Storage and Handling
jER™ 4250 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.
- Composite Materials Functions
- Adhesion Promoter
- Impact Modifier
- Resins Binders & Matrix Materials
- Plastics and Elastomers Functions
- Resin
- Compatible Substrates and Surfaces
- Aluminum
- Ceramic
- Concrete
- Fibers & Fabrics
- Glass
- Metal
- Plastics
- Steel
Technical data
Table 1 of 2
2 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Glass Transition Temperature | 70 | °C | Differential Scanning Calorimetry |
| Viscosity (at 25°C, 40% Solid Butyl Carbitol) | max. Z8+ | — | Gardner-Holdt |
Table 2 of 2
3 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Epoxy Equivalent Weight (WPE)* | 7500 - 8900 | g/eq | Potentiometric Titration |
| MEK Content* | max. 3 | % | GC |
| Molecular Weight | 59,000 | — | — |
