ACHWL CER 4221 by Achiewell is a cycloaliphatic epoxy resin. It possesses lower viscosity than epi- & bis-epoxy resins for general purposes and contains no halogen impurities such as chlorine. It is made by proprietary epoxidation using a special catalyst system.
- It offers superior transparency with acid anhydride curing agents and provides cured parts with a high heat deformation temperature.
- ACHWL CER 4221 is used in electrical-insulating varnishes, electrical-resin porcelains, insulating sealants for semiconductors, and transparent insulating sealants for light-emitting diode.
- It has a shelf life of 24 months.
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Sealants
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ACHWL CER 4221 properties
Other properties
| Properties | Value & unit | Test condition | Test method |
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| Boiling Point | 0.0 Visible After Login | Visible After Login | Visible After Login |
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| Viscosity | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Solubility Properties | Element | Condition | Method |
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