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LR-MQP Vinyl phenyl Silicone M/Q Resin
Silfluo LR-MQP is a vinyl-functional phenyl polysiloxane resin series for addition-cure silicone systems, supplied as colorless to light yellow clear liquids with impurity content below 50 ppm. When crosslinked with Si–H polymers via platinum catalysis, the cured resin network provides high hardness, high refractive index (up to 1.5420), and optical clarity.
The phenyl substituents on the siloxane backbone raise the refractive index above standard methyl silicone base resins, enabling refractive index matching to LED chips and optical elements in encapsulant formulations. Low impurity content (< 50 ppm) and low volatile content (≤1% at 150°C / 3h) support non-yellowing performance under long-term thermal and UV exposure. Five standard grades are available, differentiated by viscosity and refractive index; custom grades available on request.
Chemical Name: Vinyl-Functional Phenyl Silicone Resin
Synonyms: Phenyl Vinyl Polysiloxane, High Refractive Index (HRI) Silicone Base Resin, Vinyl Phenyl MQ Resin
