Momentive SnapSil™ TN3005 Low-Volatility Fast-Dry Sealant for Electronics
Momentive SnapSil™ TN3005 is a one-component, low volatile siloxane silicone adhesive sealant that cures at room temperature upon exposure to atmospheric moisture. It exhibits primerless adhesion to many substrates and is available as a non-flammable paste in clear, white, and black colors.
Product Features
This sealant features a fast tack-free time (approximately 7 minutes) and low-odor cure that releases alcohol vapor during the process. It is flame retardant (UL94 HB recognized) and non-corrosive to most metals. The cured material forms an elastic rubber with excellent electrical insulation, weather resistance, and chemical stability.
Technical Specifications
| Parameter |
Units |
Value |
Condition / Note |
| Uncured Properties (23°C, 50% RH) |
| Appearance |
|
Non-flammable paste, clear, white, black |
|
| Tack-free Time |
min |
7 |
|
| Cured Properties (3 days at 23°C, 50% RH) |
| Appearance |
|
Elastic rubber, clear, white, black |
|
| Density (23°C) |
g/cm³ |
1.04 |
|
| Hardness |
Type A |
22 |
|
| Tensile Strength |
MPa |
1.8 |
|
| Elongation |
% |
330 |
|
| Adhesion Strength |
MPa |
1.2 |
|
| Volatile Siloxane (D3-D10) |
wt% |
0.01 |
In-house test method |
| Volume Resistivity |
Ω*cm |
2.0 x 10¹⁵ |
|
| Dielectric Strength |
kV/mm |
26 |
|
| Dielectric Constant (60Hz) |
|
2.7 |
|
| Dissipation Factor (60Hz) |
|
0.002 |
|
| Impurities |
| Na+ |
ppm |
<2 |
In-house test method |
| K+ |
ppm |
<2 |
In-house test method |
| Cl- |
ppm |
<2 |
In-house test method |
Key Advantages
TN3005 features extremely low volatile siloxane content (D3-D10 < 0.01 wt%), minimizing the risk of silicone volatile condensation on sensitive electronic components. Its exceptionally low levels of ionic impurities (Na+, K+, Cl- all < 2 ppm) ensure high purity and reliability in precision electronic applications.
Application Scenarios
- Insulating adhesive sealing and fixing of electrical and electronic parts
- Waterproof sealing for electrical, electronic, and communication equipment
- General adhesive for metals, glass, plastics, and other substrates
- Internal encapsulation and protection in automotive electronic control units (ECUs)
- Power modules, LED lighting devices, and communication base stations
About Our Company
Shenzhen Huazhisheng New Material Technology Co., Ltd. is a professional industrial adhesives and sealants supplier serving global markets since 2018.
Market Distribution
Mainland China (60%), Southeast Asia (20%), North America (10%), and Europe (10%).
Product Portfolio
We supply high-performance adhesives and sealants from global industry leaders including Cemedine, Dow Corning, Shin-Etsu, Araldite, Momentive, and other premium manufacturers.
Quality Assurance
Our comprehensive quality control includes mandatory pre-production sample approval, final inspection before shipment, and international certifications: SGS, UL, FDA, RoHS, REACH.
Competitive Advantages
- Reliable Supply: Authentic products from top manufacturers
- Expert Support: Technical guidance for optimal product selection
- Global Compliance: Certifications meeting target market standards
- Efficient Service: Customized solutions & professional support
Service Offerings
Delivery: EXW/FOB/CIF | Payment: USD/EUR/CNY/HKD via T/T, L/C | Support: Technical consultation & logistics coordination
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