Low Refractive Index Resin

EFiRON®, APC-Series

Silane Technology Super Adhesion

EFiRON® APC Polymer Clad Series are formulated with Fopsia’s advanced silane technology.

  • EFiRON® APC-373 has 4 times glass adhesion property than SPC-373.

  • EFiRON® APC-373 has 70% improved 2.5% secant modulus value(100MPa) than SPC-373AP(60MPa)


EFiRON® APC Polymer Clad Series are specially designed to have high adhesion and modulus for water/thermal resistance applications.

ROHS compliance & USP Class 6 certification issued by NAMSA


  • Low refractive index from 1.363 to 1.452
  • Formulated with newly developed silane technology
  • Application: Special Optical Fiber, High Power Fiber Laser, Fiber Recoating, PCF, POF, PMMA, LargeCore Fiber and etc

Low Refractive Index UV Curable Resin

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