Momentive Rtv157 High-Temp Resistant RTV Silicone Adhesive & Sealant
Product Properties
| Property |
Value |
| Type |
Acidic High-Strength RTV Silicone Adhesive/Sealant |
| Appearance |
Gray Paste |
| Viscosity (23°C) |
Non-flowable |
| Density |
1.09 g/cm³ |
| Tack-Free Time |
45 minutes |
| Hardness (Shore A) |
28 |
| Tensile Strength |
6.2 MPa |
| Tear Strength |
16.1 Kg/cm |
| Elongation at Break |
825% |
| Bond Strength |
1.3 MPa |
| Volume Resistivity |
7.5 × 10¹⁴ Ω·cm |
| Dielectric Strength |
20.7 kV/mm |
| Operating Temperature |
-40°C to +150°C (long-term) |
Product Overview
Momentive RTV157 is a high-strength silicone adhesive and sealant designed for demanding industrial applications. It cures at room temperature via an acetic acid-release mechanism, forming a robust elastomer with exceptional mechanical resilience. Its combination of high tensile strength (6.2 MPa), extreme elasticity (825% elongation), and strong adhesion (1.3 MPa) makes it ideal for structural bonding and sealing where durability is critical. The product exhibits excellent electrical insulation (volume resistivity >10¹⁴ Ω·cm) and resistance to environmental stressors like UV radiation and temperature extremes
Enhanced Properties
RTV157 distinguishes itself through three core attributes:
- Mechanical Superiority:
- High Tear Resistance (16.1 Kg/cm): 40% higher than standard RTV silicones, preventing crack propagation under stress
- Elasticity & Toughness: 825% elongation accommodates substrate thermal expansion/vibration without failure
- Electrical Insulation:
- Withstands >20 kV/mm dielectric strength, suitable for high-voltage components
- Environmental Resilience:
- Stable performance across -40°C to +150°C; resists UV degradation for decades
Application Scenarios
RTV157 is validated in the following high-stress fields:
-
- Industrial Equipment Sealing:
- Seals pumps, valves, and compressors in chemical processing plants, resisting acid/alkali corrosion
- Electronics & Electrical Encapsulation:
- Protects PCB components, sensors, and high-voltage connectors from moisture and mechanical shock
- High-Temperature Environments:
- Bonds exhaust systems, engine gaskets, and aerospace components (e.g., satellite assemblies
FAQ
1. Who are we?
We are Shenzhen Huazhisheng New Material Technology Co., Ltd., a professional industrial adhesives and sealants supplier based in China since 2018. we serve global markets: Mainland China (60%), Southeast Asia (20%), North America (10%), and Europe (10%).
2. What products do you offer?
we supply high-performance adhesives and sealants from global leaders including:
Cemedine, Dow Corning, Shin-Etsu, Araldite, and Momentive,etc.
3. How do you guarantee product quality?
Quality assurance through:
Mandatory pre-production samples approval
Final inspection by QC team before shipment
International certifications: SGS, UL, FDA, RoHS, REACH
4. Why choose us over other suppliers?
Reliable Supply:Authentic products from top manufacturers
Expert Support:Technical guidance for product selection
Global Compliance:Certifications meeting target market standards
Efficient Service:Customized solutions & professional support
5. What services do you provide?
Delivery:EXW/FOB/CIF
Payment:USD/EUR/CNY/HKD via T/T, L/C
Support:Technical consultation & logistics coordination
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