Momentive Performance Materials SnapSil® TN3085 Low Volatile Siloxane, Silicone Adhesive

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Momentive Performance Materials SnapSil® TN3085 Low Volatile Siloxane, Silicone Adhesive
Categories:	Polymer; Adhesive; Thermoset; Silicone
Material Notes:	SnapSil TN3085 is a one-component, thermally conductive, low volatile siloxane, silicone adhesive that cures at room temperature upon exposure to atmospheric moisture. It cures to form an elastic, flame retardant silicone rubber and exhibits Primerless adhesion to many substrates. Features: Fast tack-free time, Low volatility, Non-corrosive to most metals, Primerless adhesion to many substrates, Low odor cure: releases an alcohol vapor during cure, Thermally conductive, Flame retardant (UL94 V-0, File No. E56745). Potential Applications: Bonding in power supplies, Thermal adhesive between electronic components and heat sinks, Securing PCBs to substrates. Information provided by Momentive Performance Materials.
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Physical Properties	Metric	English	Comments

Density	1.63 g/cc	0.0589 lb/in³	Cured

Chemical Properties	Metric	English	Comments
Ionic Impurities - Na (Sodium)	<= 2.0 ppm	<= 2.0 ppm	Cured
Ionic Impurities - K (Potassium)	<= 2.0 ppm	<= 2.0 ppm	Cured
Ionic Impurities - Cl (Chloride)	<= 2.0 ppm	<= 2.0 ppm	Cured

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	46	46
Tensile Strength	2.30 MPa	334 psi
Elongation at Break	150 %	150 %
Adhesive Bond Strength	1.30 MPa	189 psi

Electrical Properties	Metric	English	Comments
Volume Resistivity	4.00e+14 ohm-cm	4.00e+14 ohm-cm	Cured
Dielectric Constant	4.0 @Frequency 60 Hz	4.0 @Frequency 60 Hz	Cured
Dielectric Strength	23.0 kV/mm	584 kV/in	Cured
Dissipation Factor	0.040 @Frequency 60 Hz	0.040 @Frequency 60 Hz	Cured

Thermal Properties	Metric	English	Comments
Thermal Conductivity	0.700 W/m-K	4.86 BTU-in/hr-ft²-°F	Cured
Flammability, UL94	V-0	V-0

Processing Properties	Metric	English	Comments
Processing Temperature	23.0 °C @Time 259000 sec	73.4 °F @Time 72.0 hour	Cure as Tested at 50% RH
Cure Time	720 min @Temperature 30.0 °C	12.0 hour @Temperature 86.0 °F	2.5 mm cure depth. 60% RH
	720 min @Temperature 10.0 °C	12.0 hour @Temperature 50.0 °F	1.0 mm cure depth. 30% RH
	720 min @Temperature 23.0 °C	12.0 hour @Temperature 73.4 °F	1.9 mm cure depth. 50% RH
	2880 min @Temperature 10.0 °C	48.0 hour @Temperature 50.0 °F	1.5 mm cure depth. 30% RH
	2880 min @Temperature 23.0 °C	48.0 hour @Temperature 73.4 °F	4.0 mm cure depth. 50% RH
	2880 min @Temperature 30.0 °C	48.0 hour @Temperature 86.0 °F	4.7 mm cure depth. 60% RH
	4320 min @Temperature 23.0 °C	72.0 hour @Temperature 73.4 °F	5.0 mm cure depth. 50% RH
	4320 min @Temperature 30.0 °C	72.0 hour @Temperature 86.0 °F	5.8 mm cure depth. 60% RH
	4320 min @Temperature 10.0 °C	72.0 hour @Temperature 50.0 °F	2.0 mm cure depth. 30% RH
Tack-Free Time	7.00 min	0.117 hour

Descriptive Properties
Adhesion Performance	Adhesive failure		Polyethylene
	Adhesive failure		Polytetraflucroethylene
	Good (cohesive failure)		ABS
	Good (cohesive failure)		Acrylic Resin
	Good (cohesive failure)		Aluminum
	Good (cohesive failure)		Copper
	Good (cohesive failure)		Epoxy Resin
	Good (cohesive failure)		Glass
	Good (cohesive failure)		Nylon
	Good (cohesive failure)		PBT
	Good (cohesive failure)		PET
	Good (cohesive failure)		Phenolic Resin
	Good (cohesive failure)		Polycarbonate
	Good (cohesive failure)		PPO
	Good (cohesive failure)		PPS
	Good (cohesive failure)		PVC
	Good (cohesive failure)		Steel
Appearance	Non-flowable paste.		Uncured
	Rubber		Cured
Color	Gray, white		Cured
	Gray, white		Uncured
Volatile Siloxane (%wt)	0.01		Cured. (D4-D10)

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

PMOMEN9904 / 265713

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