DOWSIL Sylgard 184 Silicone Elastomer 1.1KG Two-Part Encapsulant

DOWSIL™ Sylgard®184 Silicone Elastomer 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.

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.

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

• 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