CHT Group QGel 920 High Refractive Index Silicone Gel

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CHT Group QGel 920 High Refractive Index Silicone Gel
Categories:	Polymer; Thermoset; Silicone
Material Notes:	Product Description: QGel 920 is a clear, very soft, tough, moderately cross-linked, silicone polymeric elastomer, offering exceptional clarity for optical transmission applications. This gel also provides self-healing protection to sensitive devices isolating them from shock, vibration and CTE stress. This particular silicone gel also provides excellent moisture protection and equally outstanding electrical properties over a broad temperature range. Key Features: One to one mix ratio Soft, but resilient gel Dispensing equipment not necessary Good adhesion with QSil Primer #5 Formerly Amber Chemical Co (ACC Silicones), aquired by CHT in 2017
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Physical Properties	Original Value	Comments

Specific Gravity	1.08 g/cc	Uncatalyzed A
	1.08 g/cc	Uncatalyzed B
Viscosity	1455 cP	Uncatalyzed A
	1645 cP	Uncatalyzed B

Mechanical Properties	Original Value	Comments
Penetration	5.0 - 9.0 @Temperature 150 °C, Time 1800 sec	[mm], Cured

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	150 °C
Minimum Service Temperature, Air	-40.0 °C

Optical Properties	Original Value	Comments
Refractive Index	1.485 @Temperature 49.0 °C
	1.495 @Temperature 20.0 °C
	1.50 @Temperature 14.0 °C
	1.49 @Wavelength 589 nm
Transmission, Visible	89.95 % @Wavelength 400 nm
	94 % @Wavelength 600 nm
	94.5 % @Wavelength 740 nm
	95 % @Wavelength 700 nm
	96.9 % @Wavelength 800 nm

Processing Properties	Original Value	Comments
Cure Time	24.0 hour
	30.0 min @Temperature 150 °C
	60.0 min @Temperature 100 °C
Gel Time	120 min	Catalyzed

Descriptive Properties
Color	Transparent	Uncatalyzed A
	Transparent	Uncatalyzed B

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PACC2031 / 199419

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