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

ECN9511 Cresol Formaldehyde Epoxy Resin

ECN9511 is a high-purity cresol formaldehyde epoxy resin from the ECN series by Engrace Chemical, offering excellent thermal stability, low ionic impurities, and superior adhesion for advanced semiconductor encapsulation and LED packaging applications.
  • ecn9511 cresol formaldehyde epoxy resin_0c9077cc
  • ecn9511 cresol formaldehyde epoxy resin_0c9077cc

Features Of ECN9511 Cresol Formaldehyde Epoxy Resin

  1. High thermal stability with glass transition temperature (Tg) typically above 130 °C after full curing.

  2. Excellent chemical resistance to acids, alkalis, and solvents in demanding industrial environments.

  3. Superior electrical insulation properties, making it ideal for high-reliability electronic encapsulation.

  4. Low ionic impurity content, ensuring minimal corrosion risk in semiconductor and microelectronic applications.

  5. Consistent molecular weight distribution for reliable reactivity and predictable gel time control.

Typical Applications Of ECN9511 Cresol Formaldehyde Epoxy Resin

  1. Encapsulation of integrated circuits (ICs) and power modules in automotive electronics.

  2. Underfill material for flip-chip and wafer-level packaging in advanced semiconductor assembly.

  3. Matrix resin for high-performance printed circuit board (PCB) laminates requiring flame retardancy.

  4. Adhesive formulation for bonding ceramic substrates and metal lead frames in LED packaging.

  5. Dielectric coating for sensors and MEMS devices operating under elevated temperature conditions.

Specifications Of ECN9511 Cresol Formaldehyde Epoxy Resin

Chemical TypeCresol-formaldehyde novolac epoxy resin
Product FormPale yellow to light amber solid pellets or flakes
AppearanceHomogeneous, free-flowing solid with no visible impurities
Epoxy Equivalent Weight (EEW)170–185 g/eq
Softening Point85–95 °C (ASTM D36)
Color (Gardner Scale)≤3
Chlorine Content≤400 ppm
Volatiles (1 hr @ 150 °C)≤0.5 wt%


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