Covestro Desolite® DP-1021 Primary Optical Fiber Coating, UV Cure (10 kg)

The Covestro Desolite^® DP-1021 Optical Fiber Coating is a primary coating for multimode applications. This optical coating was designed for faster processing speeds and lower attenuation as compared to the previous generation multimode optical fiber primary coatings. Available in a 10 kg bottle.

Product Benefits:

• Fast processing
• Low attenuation
• Good low-temperature performance

Liquid Coating Characteristics:

• Viscosity, 25°C: 6,000 mPa•s
• Liquid Refractive Index, 20°C: 1.481

Cured Coating Characteristics (Tested at < 1% R.H.)

• Glass Transition Temperature Range, Tg: -57°C (-70.6°F) at E’ 1000 MPa
• Glass Transition Temperature Range, Tg: -45°C (-49°F) at E’ 100 MPa

Cured Coating Characteristics (Tested at 23°C, 50% R.H.)

• Segment modulus, 2.5% strain: 0.70 MPa
• Elongation: 225%
• Tensile strength: 0.6 MPa
• Refractive Index: 1.487
• Hydrogen generation (24 hrs, 80°C in air, 75 μm films, μl•g-1): 0.05
• Volumetric coefficient of expansion (DMA), 500 μm films
  • -- in the glassy region (x10^-6), °C^-1 : 239
  • -- in the rubbery region (x10^-6), °C^-1: 863
• Adhesion to glass, per 25mm
  • -- 50% R.H. (Nx10^-2): 33
  • -- 95% R.H. (Nx10^-2): 30