UNITIKA U-polymer U-100 Optical Plastic, 1.61 Refractive Index – 25 kg bag

The UNITIKA U-polymer U-100 is a high-performance optical plastic developed by UNITIKA. With its excellent strength, clarity, and heat resistance, U-100 is widely used in fiber optic cables, precision devices, automotive parts, medical equipment, and industrial machines. UNITIKA has expanded the U-Polymer line with different grades, customized for specialized needs, using its proprietary compounding technology to enhance the natural advantages of polyarylate resin.

Features:

• High transparency and optical clarity
• Heat resistant with a deflection temperature of 175°C (1.8 MPa load)
• Large elastic recovery and excellent dimensional stability
• Strong weather resistance for outdoor and long-term applications
• Naturally flame resistant, rated UL94 V-2 at 0.75 mm without added flame retardants
• High surface hardness for durability

Properties and Melt Flow Rate:

• Refractive Index: 1.61
• Abbe Number: 19
• Visible Light Transmittance (%-T at 2mm): 87
• Melt Flow Rate (MFR, 360°C/1.2kg): 4.9

Physical and Mechanical Properties:

• Glass Transition Temperature (Tg): 193°C (379.4°F)
• Heat Deflection Temperature (HDT, 1.80 MPa): 177°C (no annealing)
• Water Absorption (24 hours): 0.26%
• Tensile Strength: 69 MPa
• Coefficient of Thermal Expansion (CTE): .6 × 10⁻⁴/°C