HomeProducts RTV-2 Silicone Rubber Addition Cure Silicone Rubber ShinEtsu KE-1222A/B - Silicone Rubber for Leather, Woodworking & Construction
ShinEtsu KE-1222A/B - Silicone Rubber for Leather, Woodworking & Construction

ShinEtsu KE-1222A/B - Silicone Rubber for Leather, Woodworking & Construction

Offering outstanding weather resistance, high electrical insulation, and long-term durability, this product is ideal for electronics encapsulation, industrial sealing, coating, and maintenance tasks.
PRODUCTS DESCRIPTION

Shin-Etsu KE-1222 A/B is a two-component RTV adhesive sealant developed for demanding industrial and electronic applications. Its dual-component design enables precise curing control, ensuring strong adhesion to various substrates such as metals, plastics, ceramics, and glass. It offers excellent bonding strength, electrical insulation, and long-term durability. The A and B components, colored blue and deep flesh tone respectively, combine to create a putty-like texture that allows for easy mixing and precise application.

products parameters

Composition:Silicone Rubber
Appearance:A: Blue, B: Deep Flesh Tone
Visocity (Pa.s):Putty
Standard Curing Time(°Cxh*):23 × 24
Packaging:1kg

key features

  • Two-Component Formula - The dual-component design allows precise control of curing and ensures uniform bonding. By mixing components A and B in a controlled ratio, KE-1222A/B achieves consistent curing at ambient temperature within 24 hours, forming a flexible and durable elastomer.


  • Superior Adhesion - KE-1222A/B provides strong bonding performance across multiple substrates, including metals, ceramics, glass, and engineering plastics. Shear strength tests show an average adhesion value exceeding 1.2 MPa on aluminum and 1.0 MPa on ABS plastic after curing. 


  • Excellent Weather Resistance - The product maintains structural integrity under extreme temperature and humidity variations. After accelerated aging tests at 150°C for 1000 hours, KE-1222A/B retained more than 95% of its original tensile strength. Its high resistance to UV radiation and ozone exposure prevents surface cracking and discoloration, ensuring stable performance for outdoor and long-term industrial sealing applications.


  • High Electrical Insulation - KE-1222A/B exhibits outstanding dielectric strength and volume resistivity, offering protection against moisture and environmental contaminants. Electrical insulation testing confirmed a dielectric strength exceeding 20 kV/mm, effectively preventing electrical leakage and short circuits in encapsulated electronic components. This makes it ideal for sealing sensors, connectors, and power modules in both humid and dusty environments.


  • Multi-Industry Versatility - The silicone’s balanced mechanical and chemical properties allow it to serve multiple purposes such as sealing, coating, and encapsulating. It maintains a viscosity optimized for both manual and automated dispensing, and its cured material resists shrinkage below 0.2%, ensuring dimensional accuracy in precision assembly.

application
  • Automobile Construction - KE-1222A/B is widely used in vehicle assembly for sealing joints, gaskets, and electronic modules. It withstands continuous thermal cycling between -40°C and 150°C, maintaining elasticity and preventing leaks or material degradation in automotive components exposed to vibration and temperature fluctuations.


  • Woodworking - The compound provides long-lasting bonding and protection for wood assemblies, offering resistance to moisture and expansion. Tests on coated wooden panels show that adhesion strength remains above 1.1 MPa after 240 hours of water immersion, ensuring consistent sealing performance for indoor and outdoor furniture applications.


  • Footwear & Leather - In leather and footwear production, KE-1222A/B serves as a durable sealing material that enhances flexibility and adhesion between dissimilar substrates. It maintains cohesive strength after 500 bending cycles, supporting high mechanical stress areas such as soles and decorative elements without delamination or surface cracking.


  • Fiber & Garment - The product is used in textile coating and bonding processes requiring elastic yet weather-resistant finishes. Its cured film shows elongation exceeding 200%, allowing it to flex with the substrate while maintaining surface protection from UV exposure and moisture, essential for outdoor apparel and technical fabrics.


  • Electronics - KE-1222A/B provides electrical insulation and environmental protection for circuit boards, connectors, and sensors. It ensures long-term functionality by preventing corrosion and electrical leakage under conditions of 95% relative humidity and 85°C temperature for 1000 hours, making it suitable for industrial and consumer electronics encapsulation.

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