Product Description
Momentive RTV12 is a clear two-component, low viscosity potting compound that cures at room temperature to a soft pliable rubber. It will cure in deep sections without additional heating or moisture. SILTRUST RTV12 has been designed to achieve primerless adhesion to many substrates, including metals, plastics and ceramics, typical of those found in electronic assemblies.
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.
Key Features of Momentive RTV12
- 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 production line may be mixed by hand or machine
Application of Momentive RTV12
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 Momentive 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.
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About Prostech
Prostech offers specialty materials (adhesives, tapes, thermal interface materials, insulating materials, sealants, PCB protection materials, …) along with manufacturing solutions. We proudly serve a wide range of industries and are an authorized distributor for leading global manufacturers of industrial materials and equipment. Our product range is designed to deliver customized solutions that address each customer’s unique needs.
With years of experience and a successful project history, we are confident in our ability to provide comprehensive material solutions. These solutions effectively tackle the challenges manufacturers face. To explore our full product catalog, simply click here. Our dedicated team is ready to assist with:
- Provide quotation, sample, TDS/MSDS, and technical consultation
- Testing sample quality and verifying product compatibility in our laboratory
- Customizing material formulas for special applications
- Adapting product sizes, quantities, and packaging to meet specific needs
- Offering expert advice on suitable equipment and automation processes
- Delivering technical training and on-site support for optimal product use
Moreover, Prostech ensures the safe and accurate global delivery of all materials, including “dangerous goods”, in compliance with legal regulations. For personalized technical support or to receive a quotation, please contact us today.
Uncured Properties As Supplied
| Property | Unit | RTV12A Base Compound | RTV12C Curing Agent |
| Color | – | Clear, Slight Haze | Clear |
| Viscosity | cps | 1300 | 15 |
| Specific Gravity | – | 1 | 0.84 |
| Solvent | – | None | Mineral Spirits |
| Property | Unit | Value |
| Base to Curing Agent Ratio by Weight | – | 20:01 |
| Catalyzed Viscosity at 5 Min. | cps | 1500 |
| Catalyzed Brookfield Viscosity at 30 Min. | cps | 3200 |
| Catalyzed Brookfield Viscosity at 60 Min. | – | Gel |
| Gel Time, minutes at 25 ºC (77 ºF) | minutes | 100 |
| Durometer, Shore A at 3 days | – | 18 |
| Specific Gravity | – | 1 |
Cured Properties ASTM Sheet 1.9 mm (0.075 in.) thickness
| Property | Unit | Value |
| Electrical Properties | ||
| Dielectric Strength | volts/mil | 400 |
| Dielectric Constant | 1 kHz | 3 |
| Dissipation Factor | 1 kHz | 0.001 |
| Volume Resistivity | Ω·cm | 1.0 x 10¹³ |
| Thermal Properties | ||
| Useful Temperature Range | °C (°F) | -60 to 204 °C |
| (-75 to 400 °F) |