Description
Shin-Etsu KE-1223 is a one-part translucent RTV silicone that cures at room temperature into a flexible, dielectric rubber. Electronics assemblers, LED module builders, and industrial fabricators reach for this silicone when they need a clear, neutral-looking seal that bonds to glass, metal, ceramics, and most engineering plastics. The 1 kg bulk pack suits production lines and field repair work that go through silicone faster than a standard cartridge can supply.
Why Engineers Specify Shin-Etsu KE-1223
The acetoxy cure pulls moisture from the air and builds a uniform rubber across thin gaskets and thicker fillets alike. The translucent finish lets operators see component placement after potting or sealing, which matters on inspection-critical work like sensor housings and LED arrays. The cured film holds dielectric strength, resists UV and weathering, and stays flexible through wide temperature swings, so the same material works on indoor electronics and outdoor enclosures.
Working Time and Cure Profile
Tack-free time runs roughly 10 minutes at 23 C and 50 percent relative humidity. Through-cure on sections up to about 4 mm completes inside 24 hours, with thicker sections curing progressively as moisture migrates inward. Apply to clean, oil-free substrates and wipe away any uncured material before it skins. For tough plastics or hard-anodized aluminum, prime first to support adhesion.
Where the Shin-Etsu KE-1223 1 kg Pack Fits
The 1 kg container is built for bench operations and continuous production where small cartridges add changeover steps and waste. Typical uses include wire bundle sealing, control panel gasketing, ceramic substrate bonding, contact protection on electrical assemblies, and weather sealing on outdoor enclosures. Pair it with a manual or pneumatic bulk applicator gun for steady bead control. Storage at room temperature in a sealed container preserves shelf life and protects against premature skinning.
Specifications
| Property | Value |
|---|---|
| Chemistry | One-part RTV silicone, acetoxy cure |
| Appearance | Translucent |
| Tack-free time | About 10 minutes at 23 C and 50 percent RH |
| Full cure (up to 4 mm) | 24 hours |
| Service temperature | About minus 50 to plus 200 C |
| Package | 1 kg bulk container |
For related potting and encapsulation chemistries, see the full adhesives and sealants catalog at Chemical Concepts. Technical reference and datasheets are published on the Shin-Etsu Silicone Global site.
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