Thanks to the enhanced refractive index from phenyl groups, phenyl silicone rubber maintains excellent temperature resistance and elasticity while offering outstanding optical transparency and UV transmittance. It is resistant to yellowing and aging, with minimal discoloration under prolonged light exposure. Relying on these characteristics, it is widely used as a lens material for LED packaging, a buffer coating for optical communication devices, and a sealing elastomer for solar modules, serving as an important functional material in optoelectronic packaging.
Methyl phenyl vinyl silicone rubber IOTA 3120