Epoxies, Etc 20-2621 Clear Polyurethane Potting & Encapsulating Compound

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Epoxies, Etc 20-2621 Clear Polyurethane Potting & Encapsulating Compound
Categories:	Polymer; Thermoset; Polyurethane, TS
Material Notes:	Description: 20-2621 is a two component Polyurethane compound designed for applications requiring “water like” clarity. This room temperature curing system provides excellent environmental protection and will not yellow over time. 20-2621 is semi-flexible and will not place excess stress on electronic components. It also has a low viscosity, which facilitates easy flow and penetration into difficult areas. This product has a convenient one to one mix ratio and is considered DOT non-hazardous. This product is packaged in the convenient TriggerBond® system. Features: Water Clear Semi-Flexible Excellent Environmental Resistance Non-Yellowing Information provided by Epoxies, Etc
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Physical Properties	Original Value	Comments

Viscosity	1400 cP	Resin
	2700 cP	Mixed
	7800 cP	Curing Agent
Storage Temperature	21.0 - 29.0 °C

Mechanical Properties	Original Value	Comments
Hardness, Shore A	85
Hardness, Shore D	40
Tensile Strength	1200 psi
Elongation at Break	60 %
100% Modulus	250 psi

Electrical Properties	Original Value	Comments
Volume Resistivity	3.00e+15 ohm-cm
Dielectric Strength	500 V/mil

Thermal Properties	Original Value	Comments
CTE, linear	228 µm/m-°C
Maximum Service Temperature, Air	135 °C
Minimum Service Temperature, Air	-40.0 °C

Processing Properties	Original Value	Comments
Cure Time	1.50 hour @Temperature 65.0 °C
	2.50 hour @Temperature 45.0 °C
	24.0 hour @Temperature 25.0 °C
	40.0 min @Temperature 85.0 °C
Pot Life	80.0 min
Shelf Life	3.00 Month

Descriptive Properties
Color	Crystal Clear
Mix Ratio	1:1	by Volume or Weight (Resin:Catalyst)

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PFEPOX021 / 316698

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