Stock Code: 601869.SH / 06869.HK

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LARMOR®YSL-017 Optical Fibre Secondary Coating

LARMOR®YSL-017 is an optical fibre secondary coating, matched with UV-LED curing. This product has many advantages such as high strip force, low PMD value, improved mechanical properties after aging and low odor.
Liquid Coating Properties
Item Typical value Unit

Viscosity, 25°C

8200 mPa•s
Density 1.12 g•cm-3
Refractive index 1.514 n/a
Cured Coating Properties
Item Typical value Unit
Elongation* 12.0 %
Tensile strength* 28 MPa
Modulus, 2.5% strain* 850 MPa
Glass transition temperature 63.9 °C
Refractive index 1.539 n/a
95% cure dose 0.2 J•cm-2
Curing shrinkage 5.3 %
Thermal weight change at
200°C for 40min
3.6 %

*Cured film thickness 150μm, test temperature at 23±2°C, humidity at 50±5%

Storage Condition

LARMOR®YSL-017 is a light curable material; protect this product from all sources of ultraviolet light, including
fluorescent lighting and sunlight to prevent premature curing. It is recommended that this coating be stored
in a dry place in unopened, undamaged, original containers at temperatures between 15° C and 30° C. Storage
or shipment in cold conditions may result in a phase separation which is reversible and is corrected by heating
for 24 hours at 50°C.

Shelf Life

LARMOR®YSL-017 has a recommended shelf life of 12 months from the date of manufacture, provided that the
above stated storage conditions are properly maintained.

Safety Information

This product may cause skin and/or eye irritation and skin sensitization. Material safety data sheet for all products

is also available from your Polytech sales representative. All safety and handling recommendations
should be followed carefully.

Filtration

LARMOR®YSL-017 is manufactured using fine filtration techniques designed to eliminate fibre strength problems and ensure uniform product performance.

DMA Curve and Viscosity-temperature Curve

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