Aptek 2120 PMF Low modulus urethane staking compound

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Aptek 2120 PMF Low modulus urethane staking compound
Categories:	Polymer; Adhesive; Thermoset; Polyurethane, TS; Thermoset Polyurethane, Adhesive
Material Notes:	Premixed-frozen, low modulus urethane staking compound APTEK 2120-PMF is a one component, premixed-frozen, thixotropic, electrically insulating soft urethane adhesive. It was designed for the staking of electrical/electronic components to printed circuit boards. APTEK 212-PMF is a 100% solids, solvent free system that will not form voids during cure or outgas after being fully cured. APTEK 2120-PMF is a non-TDI based urethane system which has outstanding reversion resistance and physical stability when subjected to high heat and humidity environments. As a urethane, this system displays higher ionic purity than epoxy systems minimizing the chance of corrosion around sensitive components and circuitry. Premixed-frozen and packaged in syringes for convenient dispensing to circuit board; Low modulus to minimize stress to sensitive components and ceramic substrates; Low Tg for excellent low temperature cycling and performance; Excellent substrate adhesion; superior to silicones. Information provided by Aptek Laboratories, Inc.
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Physical Properties	Original Value	Comments

Density	0.980 g/cc	ASTM D1475
Viscosity	188000 cP	ASTM D1824

Mechanical Properties	Original Value	Comments
Hardness, Shore A	63	Cured property; ASTM D2240

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+15 ohm-cm	Cured property; ASTM D257
Dielectric Constant	3.5 @Frequency 1000 Hz	Cured property; ASTM D150
Dielectric Strength	>= 350 V/mil @Thickness 0.127 mm	Cured; ASTM D149
Dissipation Factor	0.024 @Frequency 1000 Hz	Cured property; ASTM D150

Thermal Properties	Original Value	Comments
Glass Transition Temp, Tg	-60.0 °C	Cured property; JMTP P-200
Flash Point	>= 150 °C	ASTM D92

Processing Properties	Original Value	Comments
Processing Temperature	85.0 °C	Cure 5 hrs
	100 °C	Cure 3 hrs
	125 °C	Cure 1.5 hrs

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PAPTEK24 / 24186

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