Shin‑Etsu KE‑4971 Thermal Silicone Compound 1 kg High‑Conductivity Rubber for Electronic Heat Dissipation & Insulation

About Shin-Etsu KE-4971 Silicone Adhesive Sealant

OVERVIEW:

Shin-Etsu KE-4971 is a one-component, room-temperature vulcanizing (RTV) silicone adhesive sealant designed for bonding and sealing applications in industrial and electronic equipment. It cures upon exposure to atmospheric moisture to form a flexible, durable silicone rubber. KE-4971 is formulated to provide excellent adhesion to various substrates and is particularly suited for applications requiring thermal stability, moisture resistance, and electrical insulation.

KEY FEATURES:

Room-Temperature Cure
Cures under ambient temperature and humidity without requiring heat, simplifying the application process.

Wide Service Temperature Range
Performs effectively from approximately -40°C to +200°C, maintaining flexibility and sealing performance under thermal cycling.

Good Adhesion
Adheres well to many substrates, including metals, glass, ceramics, and plastics, supporting versatile application.

Electrical Insulation Properties
Provides dielectric properties suitable for use in insulating and protecting electronic components.

Weather and Moisture Resistance
Offers long-term resistance to moisture, ozone, UV radiation, and outdoor weathering, supporting reliable performance in harsh environments.

APPLICATIONS:

• Electrical and Electronic Equipment – Used for sealing, insulating, and protecting electronic components, housings, and assemblies.

• Automotive Components – Applied to gaskets, housings, and connectors requiring temperature stability and moisture protection.

• Industrial Equipment – Suitable for general bonding and sealing applications in machinery and production equipment.

• Appliances and Consumer Electronics – Used to bond and seal components exposed to temperature fluctuations and humidity.

• General Purpose Bonding – Applicable to a wide range of bonding and sealing needs in construction, manufacturing, and maintenance.

PACKAGING:

Shin-Etsu KE-4971 is typically supplied in standard cartridges (approx. 330ml) or larger containers, depending on regional availability and application requirements.

INSTRUCTIONS FOR USE:

• Surface Preparation: Clean and dry all surfaces to remove dust, oil, and contaminants to promote optimal adhesion.

• Application: Apply the sealant directly to prepared surfaces. Tool within the specified skin-over time to ensure proper seal formation.

• Curing: Allow to cure under room temperature and humidity conditions. Full cure time depends on joint thickness and environmental factors.

SAFETY AND HANDLING:

Shin-Etsu KE-4971 should be used in a well-ventilated area. Avoid contact with eyes and skin. Use appropriate protective equipment such as gloves and goggles. Refer to the product’s Safety Data Sheet (SDS) for detailed safety, handling, and disposal guidelines.

DISCLAIMER:

The information provided is intended for general reference only. Actual performance depends on materials used, application methods, and specific operating conditions. Users should consult the official technical datasheet and SDS to verify product suitability for their intended application.

• Fast Room-Temperature Cure: Cures quickly at ambient conditions, facilitating efficient processing.

• Non-Corrosive: Safe for use on metal components without causing corrosion.

• Low Odor: Improves working conditions during application.

• Excellent Adhesion: Adheres well to various substrates without the need for primers.

• UV Indicator: Allows for easy inspection under UV light to verify coverage.

• Environmental Resistance: Provides protection against moisture, chemicals, and thermal cycling.

• Electrical Insulation: Maintains high dielectric strength and volume resistivity, ensuring reliable performance in electronic applications. 

Typical Applications

• Printed Circuit Boards (PCBs): Protects against moisture, dust, and other contaminants.

• Electronic Modules: Provides insulation and environmental protection for sensitive components.

• Automotive Electronics: Suitable for under-the-hood applications due to its thermal stability.

• Industrial Control Systems: Ensures long-term reliability in harsh environments.

Application Methods

• Selective Spray Coating: Allows for precise application on specific areas.

• Mass Coating: Suitable for high-volume production lines.

• Flow Coating: Ensures uniform coverage on complex geometries.

Safety & Handling

• Ventilation: Use in well-ventilated areas to avoid inhalation of vapors.

• Personal Protective Equipment (PPE): Wear appropriate PPE to prevent skin and eye contact.

• Storage: Store between 1°C and 25°C, away from direct sunlight.

• Handling Precautions: Avoid using in completely enclosed spaces; ensure surfaces are clean and dry before application.