Shin-Etsu

Shin-Etsu KS-63W Silicone Oil Compound for Electrical Insulation and Sealing

KS-63W is a general-purpose silicone oil compound for electrical insulation and sealing from Shin-Etsu Silicone. It has a white grease-like appearance and provides excellent electrical properties, water repellency and chemical stability, making it particularly suitable for electrical and electronic equipment. The product maintains stable performance over a wide temperature range from -50°C to 200°C. Its typical worked consistency at 25°C is approximately 225, with a specific gravity of about 1.02. KS-63W also offers high volume resistivity and low dielectric loss, supporting insulation, moisture protection and leakage prevention in electronic assemblies. Its low-molecular-weight silicone content ΣD3–D10 is controlled to 100 ppm or less.

CategoryOrganic silicon chemicals
BrandShin-Etsu
ColorWhite
Specification100g、1kg、18kg
ApplicationA general-purpose silicone compound for electrical insulation, moisture protection, water repellency and sealing in electrical and electronic equipment.

Product Details

Product Features

Excellent Electrical Insulation:Typical dielectric breakdown strength is approximately 3.8 kV/0.1 mm, with volume resistivity of about 130 TΩ·m.

Good Water Repellency:Helps protect electrical parts against moisture and water ingress.

High Chemical Stability:Chemically inert silicone compound suitable for long-term sealing and protection.

Wide Temperature Range:Suitable for approximately -50°C to 200°C.

Low Volatility:Low volatile loss helps maintain long-term sealing and electrical insulation performance. 

Controlled Low-Molecular Siloxanes:ΣD3–D10 content is 100 ppm or less. 

 

Product Applications

Electrical Insulation:For terminals, electrical components and other areas requiring insulation protection.

Electronic Equipment Sealing:For connectors, housings and electronic assemblies requiring moisture-resistant sealing.

Moisture and Water Protection:Suitable for protecting electrical parts from humidity and water exposure. 

Connector & Terminal Protection:For connection areas requiring both insulation and moisture resistance.

General Industrial Electrical Equipment:The Shin-Etsu SDS identifies its recommended use as electrical insulation and sealing for general industrial applications.

Item KS-63W
Product Type Silicone Oil Compound for Electrical Insulation / Sealing
Brand Shin-Etsu
Model KS-63W
Appearance White Grease
Specific Gravity at 25°C Approx. 1.02
Worked Consistency at 25°C 225
Oil Separation 2.9%
Dielectric Breakdown Strength 3.8 kV / 0.1 mm
Volume Resistivity 130 TΩ·m
Dielectric Constant 2.84 at 60 Hz
Dissipation Factor 2.4×10⁻⁴ at 60 Hz
Thermal Conductivity 0.19 W/m·K
Volatile Content 0.1%
Volatility Test Condition 200°C × 24 h
Low-Molecular Siloxanes ΣD3–D10 ≤100 ppm
Service Temperature Range -50°C to 200°C