Shin‑Etsu Launches KE‑347 One‑Component RTV Silicone Rubber for Advanced Electronic Sealing and Gasketing

Shin‑Etsu, a global leader in silicone materials, officially introduces KE‑347, a one‑component, room‑temperature‑curing, self‑leveling silicone adhesive. Featuring neutral cure, low odor, non‑corrosive formulation and excellent unprimed adhesion, KE‑347 delivers durable elastomeric sealing for electronics enclosure and form‑in‑place gasketing applications.

As a condensation‑cure RTV silicone, KE‑347 requires no mixing and can be applied directly. It skins over in approximately 4 minutes and fully cures in 7 days at 23℃/50%RH, forming a tough, long‑lasting rubber ideal for automated dispensing and manual assembly to improve productivity.

Key Advantages

• Neutral & Non‑Corrosive: Safe for sensitive electronics, PCBs, metals and plastics with low odor and no corrosive byproducts.
• Excellent Unprimed Adhesion: Bonds strongly to metals, plastics, glass and ceramics without primer; shear strength 0.80MPa, tensile strength 1.97MPa, elongation 300%.
• Superb Electrical & Thermal Stability: Volume resistivity 10TΩ·m, dielectric strength 20kV/mm; operating temperature ‑40℃ to +180℃ for long‑term reliability in harsh environments.
• Self‑Leveling & Easy Processing: Medium viscosity (55Pa·s) enables flow‑out without sagging for uniform, smooth beads and reduced finishing work.

Typical Applications

• Electronic Sealing: Moisture, dust and vibration protection for sensors, PCBs, connectors, LED drivers and telecommunication modules.
• Form‑in‑Place Gasketing (FIPG): Elastic sealing for housings, enclosures and flanges, replacing conventional gaskets on complex geometries.
• Precision Component Fixing: Bonding and positioning for optical devices, home appliances and automotive electronics with excellent thermal and vibration resistance.

Product Specifications

Shin‑Etsu continues to provide high‑performance silicone solutions that enhance reliability and productivity for electronics, automotive, home appliance and telecommunication industries.