jER™ 1256 is a solid epoxy resin produced from Bisphenol A epoxy resin. It is a polymer-type epoxy resin with epoxy functional group at the both ends. It can be used to add toughness, insulating and vapor barrier properties, and resistance to heat, water and chemicals in a variety of applications.
Features
- High molecular weight
- High softening points
- Good film former
- Hydrolysis resistance
- Flexibility
- Strong adhesion
Applications
- PCM, CAN, and other coatings
- Paints
- Fiber-reinforced materials
- Thermoplastics
- Printed electronics
- Plastic processing
*jER™ is provided by Mitsubishi Chemical Corporation, a member of the Mitsubishi Chemical Group.
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Identification & Functionality
Structure : BisA-type
jER™ 1256 Features & Benefits
- Highly adhesive to metal, porcelain, concrete
- Excellent insulation property
- High heat resistance
- High chemical resistance
- High water resistance
Applications & Uses
jER™ 1256 is used for coatings (PCM, CAN, and so on) , adhesives.
Properties
| Value | Units | Test Method / Conditions | |
| Viscosity (at 25°C, 40% Solid Butyl Carbitol) | max. Z10 | - | Gardner-Holdt* |
| Glass Transition Temperature | 95 | °C | Differential Scanning Calorimetry* |
| Value | Units | Test Method / Conditions | |
| Epoxy Equivalent Weight (WPE) | 7500 - 8500 | g/eq | Potentiometric Titration* |
| Molecular Weight | 51,000 | - | - |
* Based on Mitsubishi Chemical test methods.
Technical Details & Test Data
Appropriate choice of Hardener for a desired curing temperature
- Epoxy resin forms 3D crosslinked network structure
- Abundant choices of Epoxy/Hardener combination
Packaging & Availability
Storage & Handling
jER™ 1256 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.