Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

ECN1273 Cresol Formaldehyde Epoxy Resin

ECN1273 is a cresol-formaldehyde-based epoxy resin from the ECN series by Epoxytec, offering high thermal stability, excellent chemical resistance, and superior electrical insulation. Designed for demanding applications like semiconductor encapsulation and high-performance composites, it delivers low viscosity, extended pot life, and robust adhesion to metals and ceramics.
  • ecn1273 cresol formaldehyde epoxy resin_320daa01
  • ecn1273 cresol formaldehyde epoxy resin_320daa01

Features Of ECN1273 Cresol Formaldehyde Epoxy Resin

  1. High thermal stability and excellent glass transition temperature (Tg) for demanding high-temperature applications.

  2. Superior chemical resistance, especially to acids, alkalis, and organic solvents.

  3. Low ionic impurity content, ensuring high electrical insulation performance and reliability in electronic encapsulation.

  4. Excellent adhesion to metals, ceramics, and reinforced substrates without requiring surface priming.

  5. Controlled molecular weight distribution enabling consistent reactivity and predictable curing behavior.

Typical Applications Of ECN1273 Cresol Formaldehyde Epoxy Resin

  1. Encapsulation and potting of semiconductor devices and integrated circuits (ICs).

  2. Manufacturing of high-performance printed circuit board (PCB) laminates and prepregs.

  3. Structural adhesives for aerospace and automotive composite bonding.

  4. Electrical insulating varnishes and coil coatings for motors and transformers.

  5. High-reliability molding compounds for power electronics modules.

Specifications Of ECN1273 Cresol Formaldehyde Epoxy Resin

Chemical TypeCresol-formaldehyde novolac epoxy resin
Product FormPale yellow to amber solid pellets or flakes
AppearanceFree-flowing, homogeneous solid with no visible impurities
Epoxy Equivalent Weight (EEW)180–195 g/eq
Softening Point85–95 °C
Viscosity (150 °C, molten)8,000–12,000 mPa·s
Chlorine Content< 800 ppm
Volatile Matter< 0.5 wt%


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