RTV Silicone Sealant Momentive RTV1473
Momentive RTV1473 Oil-Resistant Formed-in-Place Gasket RTV Silicone Sealant
Product Properties
| Property | Value | Unit |
|---|---|---|
| Uncured Properties | ||
| Color | Black | - |
| Consistency | Soft Paste | - |
| Specific Gravity | 1.06 | - |
| Application Rate | 380 | gm/min |
| Tack-Free Time (25°C/50% RH) | 25 | minutes |
| Cured Properties | ||
| Durometer (Shore A) | 30 | - |
| Tensile Strength | 31.5 (450) | kg/cm² (psi) |
| Elongation | 500 | % |
| Tear Strength | 8 (45) | kg/cm (lb/in) |
| Brittle Point* | -60 (-75) | °C (°F) |
| Max Service Temp (Continuous) | 204 (400) | °C (°F) |
Product Overview
Momentive RTV1473 is a one-component, black silicone rubber sealant designed for formed-in-place gasketing applications requiring oil resistance. Its thixotropic paste consistency allows application on vertical or overhead surfaces without sagging (up to 6mm thickness). The product cures at room temperature upon exposure to atmospheric moisture, forming a resilient elastomeric gasket while releasing acetic acid vapor as a byproduct.
Enhanced Key Properties
- Cure Mechanism: Forms elastomeric gasket via acetic acid-releasing moisture cure (avoid corrosion-sensitive metals).
- Temperature Resilience: Retains elasticity at 204°C long-term; withstands 260°C short-term.
- Adhesion: Primerless bonding to most substrates (test required for plastics/rubber).
- Critical Limitation: Prohibited for gasoline contact (causes excessive swelling) and delicate electronics.
- Flow Control: Thixotropic paste flows only under pressure, enabling precise bead placement.
Application Scenarios
-
Automotive Engine Gaskets
- Confirmed Use: Oil pans, valve covers, and transmission housings (Source: Automotive Manufacturing Solutions).
- Reason: Oil resistance prevents degradation from engine oils.
-
Industrial Equipment Sealing
- Example: Compressor flanges, hydraulic systems (Source: GlobalSpec Industrial Directory).
- Advantage: High-temperature stability suits heavy machinery.
-
HVAC Duct Gasketing
- Observed in: Commercial air handling units requiring ozone resistance (TDS-aligned property).
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
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.