DOWSIL Sylgard®184 Silicone Elastomer Two-Part Encapsulant for LED

Product Introduction of DOWSIL™ Sylgard®184 Silicone Elastomer

Part 1: Basic Properties

DOWSIL™ Sylgard®184 is a two-part, transparent silicone elastomer that cures at room temperature or with heat, with a mix ratio of 10:1 (base:curing agent). It offers excellent dielectric properties, high transparency, and good flame resistance, making it ideal for electronic encapsulation and protection.

Part 2: Product Description

Sylgard®184 flows easily when mixed and cures into a flexible elastomer, suitable for filling and encapsulating complex geometries. The cure process is non-exothermic and unaffected by sectional thickness or confinement, requiring no post-cure. It is UV-stable, weather-resistant, and performs reliably within a temperature range of -45°C to 200°C.

Part 3: Key Features

1. ​Fast Cure: Accelerated by heat (e.g., 10 minutes at 150°C).
2. ​High Transparency: Refractive index ranges from 1.3997 to 1.4225 (wavelength-dependent), enabling post-cure inspection.
3. ​Dielectric Performance: Dielectric strength of 500 V/mil (19 kV/mm), volume resistivity 2.9×10¹⁴ Ω·cm.
4. Mechanical Properties: Shore A hardness 43, tensile strength 980 psi (6.7 MPa).
5. Compatibility: Avoid contact with sulfur, tin, or other cure inhibitors.

Part 4: Applications

Sylgard®184 is widely used for electronic encapsulation, including:

• ​LED Lighting: High-transparency encapsulation for improved efficiency.
• ​Solar Cells: Protects PV modules from environmental stress.
• ​High-Voltage Devices: Insulates transformers, relays, and resistor packs.
• ​Sensors & Industrial Controls: Resilient in harsh conditions.
• ​Aerospace Electronics: Stable performance under extreme temperatures.

Technical Data Table

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