Low Refractive Index Adhesives and Coatings

In 2022, ACW is releasing a new line of low RI materials that are more robust than current low RI products.  The first member of the new family is R272 which is designed for nanoimprint lithography, cladding, and anti-reflection applications.  R272 will replace R260-A1 and R262-MOD-5 which will be discontinued in Q2, 2023.

UV-CURABLE LOW REFRACTIVE INDEX MATERIALS

Product η (cps, 25 °C) Tg (°C)* RI*589nm Data Sheets
R272  25-40   90   1.413   TDS

APPLICATIONS:  optical switches, waveguide bonding, fiber array to chip bonding.
*For the cured resin, RI at 25 °C.