A.10.4. CV-2640
PRODUCT
Type			Controlled volatility electrically-conductive RTV silicone for EMI and RF shielding
Chemical Composition			Phenyl Silicone - Carbon
Manufacturer	Nusil Technology 1150 Mark Avenue, Carpinteria, CA 93013 USA			Tel: +1 805 684 8780 Fax: +1 805 566 990 Email: steveb@nusil.com www.nusil.com
European Agent	Polymer Systems Technology Ltd. Unit 6, First Floor, Vernon Bldg, Westbourne St, High Wycombe UK			Tel: +44 (0)1494 446610 Fax: +44 (0)1494 528611 Email: Poly.systechltd@btinternet.com
EXPERIENCE & AVAILABILITY
Development Status			Special Commercial Product
Cost Range			High
Lot Reproducibility			Good
Space Experience			Limited
GENERAL PROPERTIES (Physical, Mechanical, Thermal, Electrical, Optical)
Nature			Typical Value		Remarks
Specific Gravity			1.25 ± 0.05		@ 25°C
Appearance			Black, elastomer
Pot Life			1 hour minimum
Viscosity			100 000 ± 20 000 cps		Manufacturer’s Data
Hardness			50 minimum		Durometer, Type A
Tensile Strength			0.5 MPa minimum		Manufacturer’s Data
Elongation			25% minimum		Manufacturer’s Data
Volume Resistivity			0.1 W m maximum		Manufacturer’s Data
Shelf Life			6 Months		@ 25°C, Refrigeration may extend shelf life.
PROPERTIES RELEVANT TO SPACE USE
Nature		Typical Value				Type of Test
Temperature Range		-115°C to +260°C.				Manufacturer’s Data
Outgassing		TML = 0.19%, RML =0.17%, CVCM = 0.00%				ECSS-Q-70-02
Thermal Cycling		Pass				ECSS-Q-70-04
SPECIAL RECOMMENDATIONS
· A primer may be required in some bonding applications. Nusil CF1-135 Silicone primer is recommended. · Base should be mixed thoroughly before use to dissipate filler. · Cure times at 25°C: - 24 hours to handle carefully. - 7 days to cure fully.