Momentive RTV12A-1G

Low Viscosity Dual-Component Silicone Potting Compound, Clear, 1 Gallon Pail

RTV12 is a clear two-component, low-viscosity potting compound that cures at room temperature to a soft pliable rubber. RTV12 will cure in deep sections without additional heating or moisture. RTV12 has been designed to achieve primerless adhesion to many substrates, including metals, plastics, and ceramics, typical of those found in electronic assemblies.

Clear to allow easy identification of components
Primerless adhesion to many metals and plastics
Repairable
Room temperature cure
Excellent electrical properties
Can be used with materials that cause cure inhibition with other RTVs
Specially formulated to minimize copper corrosion
Easily flows in and around complex electronic assemblies
Easy to use on the production line may be mixed by hand or machine

$644.84

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Technical Documents

Product Info & TDS Sheets

Momentive RTV12 Technical Data Sheet

Details

RTV12C curing agent is mixed with RTV12A base compound producing a clear cured rubber to provide see-through properties in greater thicknesses. RTV12 allows visual observation of the components during pouring and easy identification, repair, and replacement of components when necessary.

RTV12 is suggested for evaluation as a potting material to provide environmental protection to electrical and electronic assemblies. When cured, the soft, rubbery property of RTV12 rubber cushions against mechanical shock and vibration. The excellent electrical properties make it a candidate material for both high and low
voltage electrical assemblies.

Typical Physical Properties

Property	Unit	Value
Uncured Properties As Supplied		RTV12A Base Compound	RTV12C Curing Agent
Color		Clear, Slight Haze	Clear
Viscosity	cps	1300	15
Specific Gravity		1.00	0.84
Solvent		None	Mineral Spirits
Uncured Properties Curing Agent Added		RTV12A with RTV12C
Base to Curing Agent Ratio by Weight		20:1
Catalyzed Viscosity at 5 Min.		1500
Catalyzed Brookfield Viscosity at 30 Min.		3200
Catalyzed Brookfield Viscosity at 60 Min.		Gel
Gel Time, minutes at 25°C (77°F)		100
Durometer, Shore A at 3 days		18
Specific Gravity		1.00
Cured Properties ASTM Sheet 1.9 mm (0.075 in.) Thickness		24 hrs Press + 48 hrs at 25°C (77°F) 50% R.H.
Electrical
Dielectric Strength	volts/mil	400
Dielectric Constant	1 kHz	3.0
Dissipation Factor	1 kHz	0.001
Volume Resistivity	Ω·cm	1.0 x 10¹³
Thermal
Useful Temperature Range		-60 to 204°C (-75 to 400°F)