Covestro DS-2900 UV Cure Secondary Optical Coating - 10Kg

The Covestro DeSolite® DS-2900 is a secondary coating designed for use in conjunction with DeSolite® DP-1900 or DeSolite DP-1200 for high-end telecom fiber optic cable coatings systems including G.654.E applications.

DeSolite secondary coatings ensure the best economy of high-speed production and superior fiber attenuation performance. In addition to excellent microbending performance, they deliver high reliability in extreme temperatures, advanced mechanical properties and faster fiber draw speed with less Helium and energy consumption.

Benefits:

• Fast cure rate that supports ever increasing draw speeds
• Excellent low-temperature microbending performance
• Low attenuation
• Suitable for wet-on-wet or wet-on-dry processes
• LED or microwave-curable
• Robust field performance under severe environmental conditions

Liquid Coating

• Liquid Refractive Index, 23°C: 1.506
• Viscosity at 25°C: 5800 mPa·s
• Surface tension, 23°C: 19.7 mN/m

Cured Coating (75 μ film cured in N₂ at 1 J/cm² using D lamp)

• Glass Transition Temperature, Tg: 96°C (degree celsius) at Tan δ max (DMA)
• Temperature: 60°C (degree celsius) of E’1000 MPa (DMA)
• Temperature: 108°C (degree celsius) of E’100 MPa (DMA)
• Refractive Index (Cured): 1.513
• Hydrogen generation: 0.29
  • (24 hrs, 80°C in air, 75 μm films, μL/g)

Cured Rod (Cured at 1J)

• Elongation: 33%
• Tensile strength: 59 MPa
• Secant modulus, 2.5% strain: 1400 MPa
• Degree of Cure: 84%
  • (Rod Modulus Ratio 0.1J/cm² to 1.0 J/cm²)

Storage: The resin should be stored in a dry place between at temperatures between 15°C and 30°C in original, unopened and undamaged containers