Wacker Wacker® P 250 Silicone Paste

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Wacker Wacker® P 250 Silicone Paste
Categories:	Polymer; Thermoset; Silicone
Material Notes:	Product description: WACKER® SILICONE PASTE P 250 is opaque, of medium consistency and is slightly thixotropic. Properties: It has good insulating electrical properties, as well as good adhesion to metals and ceramic materials. WACKER® SILICONE PASTE P 250 coated parts exhibit excellent water repellency, resulting in a certain degree of protection against corrosion. WACKER® SILICONE PASTE P 250 is a paste with similar properties like WACKER® SILICONE PASTE P 300 but of medium consistency with an unworked penetration of 220 – 270 1/10 mm. The low viscosity of the paste facilitates its use as an embedding compound, release agent or lubricant in some class. Application: in applications involving movement of elastomers or plastics against metals lubricants for shut-off valves, control devices, joints release agents for compression molding, extruder die rings insulation for ignition systems (car electrics), protection against moisture, embedding of electronic components installation of cable accessories Information provided by Wacker Chemie AG.
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Physical Properties	Original Value	Comments

Density	0.980 g/cc	ISO 1183-1 A
Volatiles	<= 2.8 % @Temperature 200 °C, Time 108000 sec	FED-STD 791 M 321

Mechanical Properties	Original Value	Comments
Penetration	220 - 270	[1/10 mm], unworked; DIN ISO 2137
Penetration P(60), 1/10 mm	255	worked; DIN ISO 2137

Electrical Properties	Original Value	Comments
Dielectric Constant	3.8 @Frequency 50 Hz	IEC 60250
Dielectric Strength	19.0 kV/mm	DIN 53481
Dissipation Factor	0.00030 @Frequency 50 Hz	IEC 60250

Thermal Properties	Original Value	Comments
Solidus	-45.0 °C
Maximum Service Temperature, Air	200 °C
Minimum Service Temperature, Air	-40.0 °C

Descriptive Properties
Appearance	colorless, opaque

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PWACK9816 / 205345

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