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	PRODUCT DATA of RTV S 691

Material	RTV S 691
Safety Datasheet	rtv s691 msds
Product Datasheet	RTV-S 691
Product Type	Two-part, room-temperature-vulcanising adhesive.
Chemical Composition	Silicone, Filled.
Name of Manufacturer	Wacker-Chemie GmbH Johannes-Hess-Str. 24, D-84489 Burghausen, Germany +49-86 77-83-20 04 +49-86 77-83-55 91 www.wacker.de

	EXPERIENCE IN PRACTICE

Development Status	Special Commercial Product
Cost Range	Very High
Lot Reproducibility	Good
Space Experience	Extensive

	PHYSICAL PROPERTIES

Specific Gravity	1.41 to 1.43
Viscosity	180 to 260 cP Remark:Initial Viscosity
Pot Life	90 to 110 min Remark:Up to 2000 cps viscosity
Shelf Life	12 month Remark:room temperature Data Quality: Manufacturer's data

	THERMAL PROPERTIES

Thermal Conductivity	0.39 W/m.K
Thermal Expansion Coefficient	200 μstrain/°C Remark: T > -105°C
Brittleness Temperature	-105 °C
Glass Transition Temperature	-111 °C Remark: TMA

	RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY

Flammability	Burnt Test: NASA NHB 8060-1B
Offgassing Status	Fail Test: NASA NHB 8060-1A
Thermal Cycling	Pass Test: ECSS-Q-70-04
Temperature Range(space)	-180°C to +200°C.
Outgassing	TML = 0.35%, RML =0.35%, CVCM = 0.07% Test: ECSS-Q-70-02

	SPECIAL RECOMMENDATIONS

Special Recommendations

Recommended proportions are 90 pbw A to 10 pbw B. Thorough mixing is necessary. · Cure: 7 days at room temperature. · Quality control test according to ECSS-Q- 70-02 is recommended. · Use with primer Wacker G 790 for better adhesion · Offgassing can be reduced to an acceptable level by curing at 65°C.