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

Shikoku TBZ Epoxy Resin

Shikoku TBZ Epoxy Resin is a high-performance brominated epoxy resin from Shikoku Chemicals’ TBZ series, designed for flame-retardant printed circuit boards and advanced composites. It offers excellent thermal stability, low ionic impurities, and superior adhesion. Widely used in electronics encapsulation and high-reliability laminates, it meets stringent UL94 V-0 standards without antimony trioxide synergists.
  • shikoku tbz epoxy resin_123fff2e
  • shikoku tbz epoxy resin_123fff2e

Features Of Shikoku TBZ Epoxy Resin

  1. High thermal stability with decomposition onset above 300 °C, ensuring reliability in elevated-temperature processing and end-use environments.

  2. Low viscosity at room temperature (25–35 Pa·s @ 25 °C), enabling excellent wetting of fibers and ease of impregnation in composite manufacturing.

  3. Excellent chemical resistance to acids, alkalis, and polar solvents after full cure, enhancing long-term durability in aggressive service conditions.

  4. Outstanding electrical insulation properties, including high volume resistivity (>10¹⁴ Ω·cm) and low dielectric loss (tan δ < 0.02 @ 1 kHz).

  5. Compatible with standard amine and anhydride hardeners, offering flexible formulation options for tailored cure profiles and mechanical performance.

Typical Applications Of Shikoku TBZ Epoxy Resin

  1. Aerospace structural composites, including primary and secondary airframe components requiring flame retardancy and dimensional stability.

  2. High-voltage electrical insulation systems such as bushings, insulators, and encapsulants for transformers and switchgear.

  3. Advanced printed circuit board (PCB) laminates and prepregs for high-frequency, low-loss applications in 5G infrastructure and radar systems.

  4. Carbon fiber reinforced polymer (CFRP) tooling and molds used in autoclave and out-of-autoclave (OOA) manufacturing processes.

  5. High-performance adhesives for bonding dissimilar substrates in automotive power electronics and battery module assembly.

Specifications Of Shikoku TBZ Epoxy Resin

Chemical TypeTetra-Brominated Bisphenol A-based epoxy resin
Product FormAmber to light brown viscous liquid
AppearanceClear, homogeneous liquid; slight haze permissible at low temperatures
Epoxy Equivalent Weight (EEW)480–520 g/eq
Viscosity @ 25 °C25–35 Pa·s
Halogen Content (Br)Approx. 48–50 wt% (inherent flame retardancy)
Primary ApplicationsHigh-performance composites, electrical insulation, flame-retardant laminates
Key FeaturesThermal stability, low moisture absorption, high Tg potential (>180 °C post-cure)


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