Epoxy Novolac Resin (EPN/ECN)
CAS Number: 28064-14-4
Epoxy Novolac Resin (EPN/ECN) is a multifunctional epoxy resin derived from novolac phenol-formaldehyde condensates, providing high epoxy functionality (f > 2) and superior thermal and chemical resistance after cure. Its dense crosslink network yields adhesives and coatings with outstanding performance at elevated temperatures and in aggressive chemical environments. Novolac epoxies are commonly used in demanding industrial adhesive, electrical laminate, and chemical-resistant coating applications.
Technical Specifications
| viscosity | 1,500–3,000 mPa·s (52 °C) |
| appearance | Amber to dark amber viscous liquid or solid |
| functionality | 3.5–5.5 |
| epoxyEquivalentWeight | 172–185 g/eq |
| softening point (solid grade) | 60–80 °C |
Applications
- High-temperature structural adhesives
- Chemical-resistant tank and pipe linings
- Printed circuit board (PCB) laminates
- Aerospace and defense composite matrices
- Electrical encapsulants for harsh environments
Key Features
- High functionality delivers dense crosslink network
- Excellent heat resistance (HDT > 200 °C with anhydride cure)
- Outstanding resistance to acids, bases, and solvents
- Good compatibility with BPA epoxy resins
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CAS Number
28064-14-4
Category
Adhesive / Sealant AdditivesAvailability
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