Shinetsu KE-45 room temperature curing (oxime) silicone sealant - electronic adhesive

Shinetsu KE-45 room temperature curing (oxime) silicone sealant - electronic adhesive

Product Basic Attributes

KE-45 is a one-component, room temperature curing silicone sealant based on silicone polymer technology, utilizing an oxime-cure mechanism. It cures upon exposure to atmospheric moisture, forming a flexible seal with excellent temperature resistance and rubber-like elasticity without requiring heat. It is available in a range of colors: Translucent, White, Black, Red, Reddish Brown, Brown, Gray, and Ivory.

Product Introduction

Shin-Etsu KE-45 Silicone Sealant is engineered to meet the bonding and sealing demands of the electronics industry. Its paste-like viscosity allows for easy dispensing and application, forming reliable electrical insulation and protective barriers. Upon full cure, KE-45 exhibits outstanding physical properties, including high elongation (350%), good tensile strength (2.0 MPa), and excellent adhesion strength to metals (e.g., Aluminum) and plastics (Tensile Shear Adhesion Strength 1.0 MPa). Its superior electrical insulation properties (Volume Resistivity 5 TΩ·m, Dielectric Strength 23 kV/mm, low Dielectric Constant 3.0, and low Dissipation Factor 0.005 at 50Hz) make it an ideal encapsulant and bonding material for electronic components. Curing occurs under standard conditions (23±2°C, 50±5% RH) in approximately 7 days.

Product Special Attributes

The core advantages of KE-45 lie in its exceptionally wide service temperature range (-40°C to +180°C), where it maintains excellent rubber elasticity for long-term sealing and bonding reliability. Its unique oxime-cure mechanism allows for convenient room temperature application. The product features good thermal conductivity (0.21 W/m·K), aiding heat dissipation from electronic components. KE-45 achieves UL94 HB flame retardancy, enhancing application safety. Its broad adhesion to various substrates (metals, plastics) is another key attribute. Important considerations: Its cure speed is influenced by ambient temperature and humidity; deep-section cure capability is limited, making it unsuitable for large-area bonding; it releases oxime during cure, requiring good ventilation; it has been reported to potentially corrode copper metal; and electrical insulation properties may be temporarily reduced during the curing process.

Application Scenarios

KE-45 is widely used for bonding, sealing, potting, and coating in electronic and electrical equipment, particularly where superior electrical insulation, environmental sealing, temperature resistance, and shock/vibration damping are critical. Typical applications include:

Bonding and securing electronic components: Such as capacitors, resistors, coils, sensors, inductors, connector terminals, for fixation and vibration dampening.

Potting and sealing small electronic modules: Providing environmental protection, moisture/dust resistance, insulation, and mechanical support for PCBs, small control modules, power modules, LED modules, etc.

Sealing enclosures and joints: Waterproofing and dustproofing seals for electronic housings, end caps, junction boxes, etc.

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

Shenzhen Huazhisheng New Materials Technology Co., Ltd. is a leading provider of environmentally friendly adhesives and technical solutions, specializing in the application of modified silicone rubber, epoxy adhesives, thermal materials, bonding adhesives, encapsulation adhesives, and UV adhesives across various industries such as electronics, home appliances, LED lighting, automotive, consumer electronics, rail transit, aerospace, and electrical power. Huazhisheng New Materials adheres to the corporate sustainable development strategy of "Progress, Innovation, Professionalism, and Integrity," and integrates the philosophy of "Quality, Efficiency, Environment-Friendly, and Reliability" throughout the entire product lifecycle. Our products have passed SGS, UL, FDA, DIN, and non-toxic certifications, and have been awarded multiple global patents, making us one of the primary suppliers of adhesives and new materials in China's new energy, electronics, automotive, industrial, packaging, environmental protection, construction, and high-speed rail sectors.
With an innovative perspective, we offer customized solutions, continuously develop leading technologies, and provide comprehensive support to clients across various industrial sectors. We are committed to collaborating with our clients to drive industrial transformation and upgrading, ensuring your sustained competitive edge.
Based on advancements in various polymer chemical materials, Huazhisheng New Materials has established a leading position in four key areas: coating, bonding, sealing, and thermal conductivity. Our efficient and environmentally friendly adhesive products and technical solutions help industrial enterprises enhance production efficiency and benefits, protect your electronic products from external chemical agents and harsh usage environments, and extend their lifespan, ensuring continuous and stable operation.