Dow Corning 9186LC Fast-Cure Silicone Adhesive for Electronics
Sealing
Product Properties
| Property | Unit | Result (Translucent Version) |
|---|
| One or Two-part | - | One |
| Color | - | Translucent |
| Viscosity | cP (Pa·sec) | 64,000 (64) |
| Specific Gravity (Cured) | - | 1.03 |
| Tack Free Time at 25°C | minutes | 8 |
| Tensile Strength | psi (MPa) | 360 (2.5) |
| Elongation | % | 550 |
| Durometer Shore A | - | 20 |
| Adhesion Lap Shear (glass) | psi (MPa) | 185 (1.3) |
| Dielectric Strength | volts/mil (kV/mm) | 575 (23) |
| Volume Resistivity | ohm·cm | 2.0E+16 |
| Content of Low Molecular Siloxane (D4-D10) | ppm | 35 |
Product Introduction
Dow Corning 9186LC is a one-part moisture-cure adhesive that cures
rapidly at room temperature (20-30 minutes for initial handling),
eliminating the need for ovens. It offers flowable application, no
added solvents, and forms a soft, low-stress elastomer. Curing
progresses from the surface inward, achieving over 90% of full
properties within 24-72 hours, enhancing manufacturing efficiency
and reducing energy costs.
Enhanced Properties
The adhesive's fast tack-free time of 8 minutes at 25°C enables
quick in-line processing, with optional heat acceleration below
60°C to further speed throughput. Its low viscosity (64,000 cP)
allows easy flow and self-leveling, filling gaps effectively.
Special attributes include controlled silicone volatility (low
molecular siloxane content: 35 ppm D4-D10), ensuring minimal
outgassing for sensitive electronics. The cured elastomer has high
elongation (550%) and soft durometer (Shore A 20), reducing
mechanical stress on components. Electrical properties, such as
dielectric strength (23 kV/mm) and volume resistivity (2.0E+16
ohm·cm), provide reliable insulation in diverse conditions.
Application Scenarios
Dow Corning 9186LC is widely used for sealing electronic equipment
and modules, parts fixing on circuit boards, and preventing stress
cracks in consumer electronics and industrial devices. Specific
applications include bonding and encapsulation in smartphones,
automotive sensors, and LED lighting assemblies, where its fast
cure and low volatility enhance reliability. According to Dow
Corning's website and industry reports (e.g., Electronics Weekly),
this adhesive is ideal for high-volume production lines, such as in
automated dispensing systems for PCB assembly, due to its
compatibility with common substrates like glass and ceramics.
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
