Description
About Shin-Etsu KE-40RTV
Overview
Shin-Etsu KE-40RTV is a one-component, room-temperature vulcanizing (RTV) silicone adhesive/sealant. It cures upon exposure to atmospheric moisture, forming a durable, flexible elastomer
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Cure Type: Condensation (neutral oxime)
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Appearance: Gray or white thixotropic paste
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Density: 1.58 g/cm³ at 23 °C
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Tack-Free Time: Approximately 12 minutes at 23 °C, 50% RH
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Cure Conditions: 7 days at 23 °C, 50% RH
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Hardness: Shore A 60
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Tensile Strength: 2.90 MPa
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Elongation at Break: 200%
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Shear Strength: 1.00 MPa
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Thermal Conductivity: 0.42 W/m·K
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Dielectric Strength: 25 kV/mm
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Dielectric Constant: 3.9 at 50 Hz
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Dissipation Factor: 0.01 at 50 Hz
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Volume Resistivity: 1 TΩ·m
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Operating Temperature Range: -40 °C to +180 °C
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UL Rating: 94 V-0 flame retardant
Key Features
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Neutral Cure: Non-corrosive to metals and sensitive substrates.
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Low Odor: Suitable for enclosed environments.
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Excellent Adhesion: Bonds well to metals, plastics, glass, and ceramics without primers.
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Electrical Insulation: High dielectric strength and volume resistivity.
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Flame Retardant: Meets UL 94 V-0 standards.
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Weather Resistance: Resistant to UV, ozone, and moisture.
Typical Applications
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Electronics Sealing: Protects components from moisture and contaminants.
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Form-in-Place Gaskets: Replaces traditional gaskets in assemblies.
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Adhesive Bonding: Joins dissimilar materials in various assemblies.
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Thermal Management: Assists in dissipating heat in electronic devices.
Usage Guidelines
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Surface Preparation: Clean surfaces to remove oils, dust, and contaminants.
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Application: Apply directly from the container using appropriate dispensing equipment.
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Curing: Allow to cure at room temperature; full cure achieved in 7 days at 23 °C, 50% RH.
Safety & Handling
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Storage: Store in a cool, dry place away from direct sunlight.
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Handling: Use in well-ventilated areas; avoid contact with skin and eyes.
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Disposal: Dispose of in accordance with local regulations.
