Product Description
Momentive RTV577 silicone rubber compound is low-temperature two-part silicone elastomers. They are supplied ready to use with a base compound and DBT (dibutyl tin dilaurate) as the standard curing agent. DBT is suitable for most applications, however, other catalysts are available to facilitate deep section cure, faster cure, and automated mixing. RTV577 has the widest useful temperature (highest and lowest) of any silicone elastomer.
Serie includes Momentive RTV511, RTV560, RTV577
Key features and benefits of Momentive RTV577
- Variable work times and cure rates by adjusting the amount and type of curing agent
- Room temperature cure
- Composition free of solvents and solvent odor
- Excellent adhesion capabilities with primer
- Excellent release properties: Retention of elastomeric properties with the following temperature ranges:
- Momentive RTV577 at temperatures from -115°C (-175°F) up to 204°C (400°F) continuously and up to 260°C (500°F) for short periods of time
Application of Momentive RTV577 (as well as Momentive thermal protection material)
- Cast in place heat shielding
- Adhesion of thermal blankets
- Protective coatings and thermal insulation for sensitive components and critical equipment
- Encapsulants & potting for high heat locations
- Interior & exterior adhesives
- Flexible composite coatings
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.
Technical physical properties
| Color | White |
| Consistency | Paste |
| Viscosity, cps | 700,000 |
| Specific Gravity | 1.35 |
| Work Time @ 25°C (77°F), hours | 2 |
| Cure Time @ 25°C (77°F), hours | 24 |
| Hardness, Shore A Durometer | 48 |
| Tensile Strength, kg/cm2 (psi) | 31 (380) |
| Elongation, % | 150 |
| Tear Strength, kg/cm (lb/in) | 6.8 (38) |
| Thermal Conductivity, W/mK | 0.31 |
| Coefficient of Linear Thermal Expansion, cm/cm, °C | 20 x 10^-5 |
