EGZ-SD65WH is a transparent, colorless silicone-based optical coupling compound designed for high-efficiency light transmission in precision optoelectronic applications. It exhibits excellent optical clarity, minimal evaporation and fluid bleed at room temperature (25 °C), and outstanding long-term stability.

Key Properties:

Refractive index: 1.467
Specific gravity: 1.12
Appearance: Clear, colorless gel
Low volatility and bleed, ensuring reliable performance over extended periods

Primary Applications:
EGZ-SD65WH is ideally suited for optical interfacing between photosensors and scintillating materials, including:

Coupling of photomultiplier tubes (PMTs) to scintillation crystals (e.g., NaI(Tl), CsI(Tl)) and light guides
Sealing and filling in projector picture tubes
Downhole tools for oil and gas exploration
Encapsulation, bonding, and potting of sensitive electronic and optical components
Optical fiber assembly: bonding, filling, and light coupling

Its stable physical and optical characteristics make EGZ-SD65WH a reliable choice for demanding environments where consistent light transfer and long-term integrity are critical.

Parameters

Specific Gravity (25 ℃)	1.12
Transmittance	＞95%
Refractive Index(25 ℃ n D25)	1.467
Concentration(25 ℃/JIS)	322
Oil separation(200 ℃/24 h)	0%
Temperature range	-50-250℃