Covestro DP-1021 UV Cure Primary Coating - 10Kg.

DeSolite® DP-1021 is a primary coating for multi-mode applications. It was designed for faster processing speeds and lower attenuation as compared to the previous generation multi-mode primary coatings.

Liquid Coating Characteristics

• Viscosity, 25°C, 6,000 mPa•s
• Density, 23°C, 1,030 kg•m^-3
• Liquid Refractive Index, 23°C, 1.481
• Surface tension, 23°C, 34 dynes•cm^-1

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
• Degree of Cure, RTDMA Gel Time, 0.30s
• Dynamic water sensitivity (150 µm films)
  • peak absorption, 1.3%
  • extractables, 1.0%
• 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), 239 °C^-1
  • in the rubbery region (x10^-6), 863°C^-1
• Adhesion to glass, per 25mm
  • 50% R.H. (Nx10^-2), 33
  • 95% R.H. (Nx10^-2), 30

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

• Glass Transition Range (DMA), -57°C at E’_{1000 MPa}
• Glass Transition Range (DMA), -45°C at E’ _{100 MPa}

Shelf Life: 12 months from the date of manufacture