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UNITIKA U-polymer U-100 Optical Plastic, 1.61 Refractive Index – 25 kg bag
U-100-25KG
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
- Refractive Index: 1.61
- Abbe Number: 19
- Visible Light Transmittance (%-T at 2mm): 87
- Melt Flow Rate (MFR, 360°C/1.2kg): 4.9
- 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
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