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

KCW CCR-4959HW Epoxy Resin

KCW CCR-4959HW Epoxy Resin is a high-performance, low-viscosity, halogen-free epoxy system from KCW’s CCR series, designed for advanced composite applications, LED encapsulation, and precision electronics. It offers excellent thermal stability, low shrinkage, superior adhesion, and reliable electrical insulation. Ideal for demanding industrial curing processes requiring consistent flow and long pot life.
  • kcw ccr 4959hw epoxy resin_a7965eaa
  • kcw ccr 4959hw epoxy resin_a7965eaa

Features Of KCW CCR-4959HW Epoxy Resin

  1. High thermal stability with continuous service temperature up to 180 °C.

  2. Excellent electrical insulation properties, ideal for high-voltage encapsulation.

  3. Low viscosity (350–450 mPa·s at 25 °C) enabling superior flow and void-free impregnation.

  4. Fast-curing system compatible with standard epoxy hardeners for efficient production cycles.

  5. UL 94 V-0 rated flame retardancy without halogen additives.

Typical Applications Of KCW CCR-4959HW Epoxy Resin

  1. Encapsulation of power electronics, including IGBT modules and EV inverters.

  2. Insulation and potting of high-frequency transformers and inductors.

  3. Structural bonding in aerospace composite assemblies requiring thermal resilience.

  4. Dielectric coating for PCB edge connectors and high-density interconnect substrates.

  5. Underfill material for advanced semiconductor packaging with CTE matching capability.

Specifications Of KCW CCR-4959HW Epoxy Resin

Chemical TypeBisphenol-F based epoxy resin
Product FormClear, low-viscosity liquid
AppearanceAmber to pale yellow transparent liquid
Epoxide Equivalent Weight (EEW)185–195 g/eq
Viscosity (25 °C)350–450 mPa·s
Density (25 °C)1.16–1.18 g/cm³
Halogen ContentNon-halogenated (<0.1 wt% Cl/Br)
Storage Stability12 months at <25 °C in sealed container


Get in Touch with ERICW
Let competitive chemical materials go global.

Your Name *

Your Email *

Your Phone

Country

Your Message *