ShinEtsu KE‑3490 – High Transparency Silicone Rubber for Optical & Electronic Applications

A two‑part silicone rubber offering high transparency and durability, ideal for optical and electronic sealing.

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PRODUCTS DESCRIPTION

KE‑3490 is a two‑component RTV silicone rubber formulated for applications requiring optical clarity and electrical insulation. It cures into a transparent elastomer with excellent mechanical strength, chemical resistance, and thermal stability, making it suitable for encapsulation, potting, and molding in electronics and optical devices.

Products parameters

Composition:	Silicone Rubber
Appearance:	Transparent Viscous Liquid
Viscosity (25 °C):	~10,000 mm²/s
Specific Gravity (25 °C):	~1.10
Refractive Index (25 °C):	~1.410
Packaging:	100g, 330ml

Key features

• High transparency: Suitable for optical and LED encapsulation applications

• Electrical insulation: Provides strong dielectric properties for sensitive electronics

• Chemical resistance: Withstands solvents and industrial fluids

• Thermal stability: Maintains performance under elevated temperatures

• Durable elastomer: Long service life in demanding environments

Application

• Electronics Industry

• Optical Devices Industry

• LED Industry

• Automotive Electronics Industry

• Industrial Equipment Industry

About INNOSILICONE

INNOSILICONE CO., LTD was established in 2004 in a beautiful international city ,Hong Kong. We mainly engaged in selling Shin Etsu, Elkem, Dow chemical & Momentive's silicone products, and we also involved many various silicones.

We have over 20 years' experience for selling & producing high quality silicone products which can be applied in different industries including plastic, electronic, transportation vehicle, paint, cosmetic, textile, food, medical and architecture and many others industries.

Our group also expand to several manufacturing company decade ago which is located in Jiangmen city that is near to Guangzhou and Shenzhen. Our manufacture engaged mainly in research & development, manufacturing and marketing of textile & industrial silicones, our annual production capacity is over 5000 tones a year.

No matter you are in an current operation stage or are still in the preliminary stages, our technical experts will be glad to work with you to the right silicones products for your specific application.