Epoxies, Etc 20-1650 High Temperature Silicone Potting and Encapsulating Compound

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Epoxies, Etc 20-1650 High Temperature Silicone Potting and Encapsulating Compound
Categories:	Polymer; Thermoset; Silicone
Material Notes:	Description: 20-1650 is a two component silicone elastomer designed for high temperature applications. Silicones offer thermal stability at high operating temperatures, but the 20-1650 is formulated with iron oxide to impart increased stability at elevated temperatures. It has a simple 1:1 mix ratio. 20-1650 can be used for potting or encapsulating electronic packages that have sensitive components. Due to its low stress during and after cure, this material will not crush or damage delicate components. 20-1650 is formulated without solvents or other toxic materials. It is therefore not regulated or considered hazardous for transportation. Features: High operating temperatures Easy 1:1 mix ratio Low viscosity Flexible Deep section curing (beyond 1-2 inches) Solvent free Benefits: Good protection in extreme environmental applications Simple to use Dispenses and pours easily without air bubbles Low stress on components and vibration resistant No need for multiple pours due to low exotherm No by-products released during cure and safe to handle Information provided by Epoxies, Etc
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Physical Properties	Original Value	Comments

Specific Gravity	1.03 g/cc	Activator (Part B)
	1.04 g/cc	Resin (Part A)
Viscosity	6500 cP	Activator (Part B)
	7100 cP	Mixed
	7500 cP	Resin (Part A)
Storage Temperature	18.0 - 27.0 °C

Mechanical Properties	Original Value	Comments
Hardness, Shore A	30
Tensile Strength	149 psi
Elongation at Break	250 %
Tear Strength	20.0 pli

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+14 ohm-cm
Dielectric Constant	3.1 @Frequency 100 Hz
Dielectric Strength	450 V/mil

Thermal Properties	Original Value	Comments
CTE, linear	200 µm/m-°C
Thermal Conductivity	1.10 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air	300 °C
Minimum Service Temperature, Air	-65.0 °C

Processing Properties	Original Value	Comments
Pot Life	20.0 min @Load 0.100 kg
Shelf Life	6.00 Month

Descriptive Properties
Color	Clear	Activator (Part B)
	Red	Resin (Part A)

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PFEPOX004 / 316681

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