A.14.10. Solithane 113/C 113-300 (100/73 pbw)
PRODUCT
Type			Two-part, soft, transparent, potting, conformal coating, bonding agent.
Chemical Composition			Polyurethane.
Manufacturer	Uniroyal Chemical Company Inc. (Crompton Corporation) 214 West Ruby Avenue, Gastonia NC 28053, USA				Tel: +1 704 864-3411 Fax: +1 704 864-4079 Email: bob_marionneaux@cromptoncorp.com www.cromptoncorp.com
(Previously)	Thiokol Chemical Corp. Trenton, NJ, USA
EXPERIENCE & AVAILABILITY
Development Status				Commercial Product
Cost Range				Low
Lot Reproducibility				Excellent
Space Experience				Extensive
GENERAL PROPERTIES (Physical, Mechanical, Thermal, Electrical, Optical)
Nature				Typical Value			Remarks
Specific Gravity				1.073
Viscosity				20 000 cps		@ 27°C
Pot Life				3 hours		@ 27°C
Hardness				55 to 60
Tensile Strength				2.85 MPa		Manufacturer’s Data
Glass Transition Temperature				-10°C		Thermal expansion measurement
Dielectric Constant				4.2		@ 27°C, 1kHz
Dissipation Factor				0.162		@ 27°C, 1kHz
Dielectric Strength				14.9 kV/mm		@ 27°C
Volume Resistivity				2.5 x 10^12 W m		@ 27°C
Thermal Expansion Coefficient				126 x 10^-6 °C^-1		-55°C to -15°C
				238 x 10^-6 °C^-1		0°C to 70°C
PROPERTIES RELEVANT TO SPACE USE
Nature		Typical Value						Type of Test
Temperature Range		-60°C to 120°C max.						Long Term
Outgassing		TML = 0.37%, RML =0.21%, CVCM = 0.01%						ECSS-Q-70-02
Thermal Cycling		Pass						ECSS-Q-70-04
Ionising Radiation		10 Mrad						Manufacturer’s Data
Oxygen Index		24.7						ECSS-Q-70-21
Flammability		Fail (21% O2)						NASA NHB 8060-1B
SPECIAL RECOMMENDATIONS
· Recommended cures: 7 days at room temperature, or 24 hours at 70°C. · Compositions other than the one detailed here are possible. Large amounts of experimental data on them exists and is available on demand. · Not resistant to solar UV radiation. · Owing to flammability risk, not to be used as a conformal coating in manned spacecraft unless a fire-resistant overcoating is used. It’s acceptability as an adhesive will depend on the configuration. · Possible use as a screw-locking compound. · Possible use as an ink with suitable addition of pigments and solvents. · Possible use as a conductive coating when filled with silver powder. · Flammability highly dependent on coating thickness. Configuration flammability tests required.