Product Introduction
Momentive SILTRUST™ RTV11 is a general-purpose, two-part silicone rubber compound designed for molding, potting, and encapsulation applications. It cures at room temperature to form a durable elastomer with excellent mechanical strength, electrical insulation properties, and thermal stability across a wide temperature range. With its easily pourable viscosity and solvent-free formulation, RTV11 supports versatile processing and is FDA-compliant for specific food-contact uses (excluding acidic foods).
Momentive SILTRUST™ RTV11 Features
- Room-temperature cure with adjustable work time
- Solvent-free formulation with no solvent odor
- Easily pourable viscosity for convenient processing
- FDA compliant for certain food-contact applications
- Strong adhesion when paired with appropriate primers
- Excellent mold-release properties
- Reliable performance from -54°C to 204°C, with short-term resistance up to 260°C
- Mechanical resilience with 41 Shore A hardness and 510 psi tensile strength
- Strong electrical insulation, including 20.3 kV/mm dielectric strength
- Low shrinkage (approx. 0.6%) for accurate cure dimensions
Momentive SILTRUST™ RTV11 Applications
- Potting and encapsulating electrical coils, connectors, and electronic assemblies
- Cast-in-place gaskets and molds for industrial processes
- Release coatings on metals, plastics, and fabrics
- General-purpose molding and prototyping
- Applications requiring strong dielectric integrity and thermal resistance
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.
| Property | Value |
|---|---|
| RTV11 Color | White |
| RTV21 Color | Pink |
| RTV41 Color | White |
| RTV11 Viscosity | 11,000 cps |
| RTV21 Viscosity | 26,000 cps |
| RTV41 Viscosity | 39,000 cps |
| RTV11 Specific Gravity | 1.19 |
| RTV21 Specific Gravity | 1.32 |
| RTV41 Specific Gravity | 1.31 |
| Cure Time | 24 hours @ 25°C |
| Hardness (Shore A) | 41 / 45 / 47 |
| Tensile Strength | RTV11: 36 kg/cm², RTV21: 22 kg/cm², RTV41: 36 kg/cm² |
| Elongation | 190% / 210% / 190% |
| Dielectric Strength | 20.3 / 16.5 / 20.3 kV/mm |
| Thermal Conductivity | 0.29 / 0.31 / 0.31 W/m·K |
| Operating Temperature | -54°C to 204°C |
