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	Original Value	Comments

Density	1.63 g/cc	Cured

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

Mechanical Properties	Original Value	Comments
Hardness, Shore A	46
Tensile Strength	2.30 MPa
Elongation at Break	150 %
Adhesive Bond Strength	1.30 MPa

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

Thermal Properties	Original Value	Comments
Thermal Conductivity	0.700 W/m-K	Cured
Flammability, UL94	V-0

Processing Properties	Original Value	Comments
Processing Temperature	23.0 °C @Time 259000 sec	Cure as Tested at 50% RH
Cure Time	12.0 hour @Temperature 30.0 °C	2.5 mm cure depth. 60% RH
	12.0 hour @Temperature 10.0 °C	1.0 mm cure depth. 30% RH
	12.0 hour @Temperature 23.0 °C	1.9 mm cure depth. 50% RH
	48.0 hour @Temperature 10.0 °C	1.5 mm cure depth. 30% RH
	48.0 hour @Temperature 23.0 °C	4.0 mm cure depth. 50% RH
	48.0 hour @Temperature 30.0 °C	4.7 mm cure depth. 60% RH
	72.0 hour @Temperature 23.0 °C	5.0 mm cure depth. 50% RH
	72.0 hour @Temperature 30.0 °C	5.8 mm cure depth. 60% RH
	72.0 hour @Temperature 10.0 °C	2.0 mm cure depth. 30% RH
Tack-Free Time	7.00 min

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)

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PMOMEN9904 / 265713

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