OF-1375-A: Optical Fiber Coating
OF-1375-A is a low refractive index optical fiber coating, developed for the cladding of optical fibers. The material is designed to be compatible with Optical fiber Drawing Towers.
OF-1375-A includes a proprietary adhesion promoter that improves adhesion to the silica core of the fiber, especially under wet conditions (e.g. hot water immersion test). It was designed to enable a significantly longer shelf life than previously available adhesion promoters.
Properties
| Liquid state | |
| RI liquid at 589 nm | 1.368 |
| Density, g/cm3 | 1.56 |
| Viscosity, cps @ 25°C | 4100 |
| Cured state | |
| RI cured at 589 nm | 1.377 |
| RI cured at 950 nm | 1.372 |
| Adhesion to glass, 90° Peel, g/cm | 70 |
| Elastic modulus, MPa | 155 |
| Tensile Strength, MPa | 8.3 |
| Elongation at Break, % | 54 |
The product is supplied pre-filtered to below 1 micron particles.
Storage
- Avoid unnecessary exposure to ambient light and
- Long-term storage should be at ambient conditions of 10-30ºC.
- The coating is supplied in glass bottles. Keep the container closed to avoid moisture
- The shelf life is 6 months.
Application
OF-1375-A is intended to be used in optical fiber drawing towers. The UV curing is done under nitrogen. Typically, a dose of 1000-2000 mJ/cm2 is necessary. Any UV source in the 300-400 nm range can be used. When properly cured under nitrogen, the surface should be non-tacky.
Keep the bottle closed at all times when not in use. The material is sensitive to both light and moisture.
Safety: Refer to the SDS
Note: The above information is believed to be reliable, but it is not to be taken as a representation, warranty, or guarantee. Customers should perform their own QC, QA, and evaluation tests.
Updated: March 1, 2020
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