Shin-Etsu Chemical Co.,Ltd. Organic Electronics Materials Dept.

Optical fiber coating material

OF series

Optical fiber coating material is protects the surface of very thin optical fiber with a cross section diameter of 125 μm and improves strength with excellent in heat resistance, cold resistance, and demonstrates stable function over a wide temperature range.
Besides the heat curing type, there are products of UV curing type corresponding to high speed drawing.


Product Feature Melt viscosity Refractive index Hardness
Pa.s nD25  
OF-180 Standard
Heat cureable
2 1.41 A60
OF-182 High Refractive index
Heat cureable
2 1.52 A25
OF-191 Hard
Heat cureable
3 1.41 A80
OF-207 UV Cure 1 1.44 A50
OF-211 High Refractive index
UV Cure
5 1.49 A60
OF-600 Low Refractive index 4 1.33 A30
OF-700 Transparent
High Refractive index
Heat cureable
0.4 1.50 D75
OF-38E(7CS) Matching Silicone Oil 7cs 1.469 -
OF-38E(50CS) Matching Silicone Oil 50cs 1.469 -

* The data of each product that exists in the above-mentioned table is not a standard value. Please test without fail before use beforehand, and confirm whether to suit use.