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LR-MQPH Phenyl Hydrogen Silicone Resin
Silfluo LR-MQPH is a phenyl hydrogen polysiloxane crosslinking agent for addition-cure silicone systems. Characterized by a high refractive index (up to 1.5400) and optical clarity, this resin forms a crosslinked three-dimensional network when reacted with vinyl-functional silicones via platinum catalysis.
The cured siloxane matrix provides surface hardness, moderate flexibility, and resistance to thermal degradation, UV radiation, and chemical solvents. The phenyl substituents on the siloxane backbone raise the refractive index above that of standard methyl silicone crosslinkers, making LR-MQPH the appropriate crosslinker for high-refractive-index (HRI) optical encapsulant formulations where refractive index matching to LED chips or optical elements is required.
Three viscosity grades are available, differentiated by viscosity, hydrogen content, and refractive index to accommodate different formulation requirements.
