Epoxies, Etc 50-3185 NC, Catalyst #140 Thermally Conductive Potting & Encapsulating Resin

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Epoxies, Etc 50-3185 NC, Catalyst #140 Thermally Conductive Potting & Encapsulating Resin
Categories:	Polymer; Thermoset; Epoxy; Epoxy Encapsulant, Unreinforced
Material Notes:	Description: 50-3185 NC is a filled epoxy encapsulant possessing excellent physical, electrical, and thermal properties. 50-3185 NC is an excellent choice where low thermal expansion, outstanding electrical insulation and/or high thermal conductivity is required. Three catalysts are available to choose from. When cured with Catalyst 190 or Catalyst 30 this system meets NASA’s outgassing requirements. Features: Low Thermal Expansion Excellent Electrical Insulator High Thermal Conductivity Protects & Conceals Circuitry Applications: 50-3185 NC is ideal for high voltage applications such as power supplies, transformers, high voltage insulators, bushings, etc Information provided by Epoxies, Etc
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Physical Properties	Original Value	Comments

Specific Gravity	2.25 g/cc
Water Absorption	0.050 % @Time 86400 sec
Viscosity	3440 cP
Linear Mold Shrinkage	0.0040 in/in
Outgassing - Total Mass Loss	0.020 %	CVCM
	1.1 %

Mechanical Properties	Original Value	Comments
Hardness, Shore D	94
Flexural Strength	15000 psi
Compressive Strength	16000 psi

Electrical Properties	Original Value	Comments
Volume Resistivity	4.90e+16 ohm-cm
Dielectric Constant	5.41 @Frequency 1e+6 Hz
Dielectric Strength	380 V/mil
Dissipation Factor	0.059 @Frequency 1e+6 Hz

Thermal Properties	Original Value	Comments
CTE, linear	31.9 µm/m-°C
Glass Transition Temp, Tg	47.0 °C

Optical Properties	Original Value	Comments
Refractive Index	1.12

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PFEPOX059 / 316736

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