Dow Silastic® 9390-70 LSR Oil-Resistant Liquid Silicone Rubber

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Dow Silastic® 9390-70 LSR Oil-Resistant Liquid Silicone Rubber
Categories:	Polymer; Thermoset; Silicone; Silicone Rubber; Liquid Silicone Rubber (LSR)
Material Notes:	SILASTIC™ 9390 Series LSRs provide good oil resistance in an off-white, injection-molding-grade elastomer for a range of air- and fluid-sealing applications. Product applications: Oil-resistant applications Seals, O-rings, diaphragms Key Features: Good oil resistance Low compression set Off-white Former Dow Corning brand.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.47 g/cc	1.47 g/cc	ASTM D792

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	68	68	ASTM D2240
Tensile Strength	8.00 MPa	1160 psi	ASTM D412
Elongation at Break	240 %	240 %	ASTM D412
Tear Strength	16.0 kN/m	91.3 pli	ASTM D624 DIE B
Compression Set	20 % @Temperature 150 °C, Time 252000 sec	20 % @Temperature 302 °F, Time 70.0 hour	NPC; ASTM D395

Processing Properties	Metric	English	Comments
Extrusion Rate	60.0 g/min	60.0 g/min	MIL-S-8802D

Descriptive Properties
Oil immersion (% volume change)	32		IRM 903; (70 hr @ 150°C), ASTM D471
	5		ASTM 1; (70 hr @ 150°C), ASTM D471

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PDOW9938 / 233141

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