Momentive SnapSil TN3305-C Electronics Insulating Adhesive Sealant
Product Properties
| Property | Unit | Value |
| Uncured Properties |
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| Appearance | – | Flowable, clear/white/black |
| Viscosity (23°C) | Pa·s | 47 |
| Tack-free Time (23°C) | min | 9 |
Cured Properties
(3 days, 23°C, 50% RH) |
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| Density (23°C) | g/cm³ | 1.04 |
| Hardness (Type A) | – | 14 |
| Tensile Strength | MPa | 1.5 |
| Elongation | % | 400 |
| Adhesion Strength | MPa | 1.0 |
| Volatile Siloxane (D3-D10) | wt% | 0.01 |
Product Introduction
Momentive SnapSil TN3305-C is a one-component, low-volatility silicone adhesive sealant that cures at room temperature upon exposure to atmospheric moisture. It delivers primerless adhesion to diverse substrates (metals, glass, plastics), with fast tack-free time (9 min at 23°C) and low alcohol emission during cure. Certified flame retardant (UL94 HB, File E56745) and non-corrosive to most metals.
Enhanced Properties
- Electrical Insulation: Volume resistivity 2.0×10¹⁵ Ω·cm, dielectric strength 26 kV/mm.
- Low Ionic Impurity: Na⁺/K⁺/Cl⁻ content <2 ppm (in-house test).
- Stable Dielectrics: Dielectric constant 2.7 (60Hz), dissipation factor 0.002 (60Hz).
- Environmental Compliance: Ultra-low volatile siloxane (0.01 wt% D3-D10).
Application Scenarios
- Electronics Encapsulation: PCB moisture barrier, sensor potting (Mouser Electronics).
- EV Component Sealing: Battery junction boxes, charging port seals (Momentive industrial solutions portfolio).
- Communications Equipment: Waterproof gaskets for 5G base stations (IHS Markit ET-32 report).
- General Industrial Bonding: Adhesion to aluminum/steel/engineering plastics (documented in TDS).
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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Momentive SnapSil TN3305-C Electronics Insulating Adhesive Sealant Images
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