Single-Component RTV Silicone Rubber
Silico® Single-Component RTV Silicone Rubber is a moisture-curing, ready-to-use elastomer for sealing, bonding, potting, and coating in industrial, electronic, automotive, and construction uses.
Product Overview
Silico® Single-Component RTV (Room Temperature Vulcanizing) Silicone Rubber is a high-performance, moisture-curing elastomer designed for reliable sealing, bonding, potting, and coating applications. As a ready-to-use one-part system, it requires no mixing and cures upon exposure to ambient humidity, making it ideal for industrial, electronic, automotive, and construction applications.
Key Technical Specifications
| Property | Typical Value | Test Method |
|---|---|---|
| Appearance | Translucent or custom color (upon request) | Visual |
| Curing System | Acetoxy / Oxime / Alkoxy | Internal Standard |
| Consistency | Non-sagging paste | ASTM D2196 |
| Skin Time (at 23 °C, 50% RH) | 5–15 minutes | ASTM C679 |
| Tack-Free Time | 20–60 minutes | ASTM C679 |
| Full Cure Time | 24–72 hours (depending on thickness) | Internal Method |
| Hardness (Shore A) | 18–60 | ASTM D2240 |
| Tensile Strength | 1.2 – 2.5 MPa | ASTM D412 |
| Elongation at Break | 150% – 700% | ASTM D412 |
| Temperature Resistance | –60 °C to +250 °C (short-term up to 300 °C) | Internal Method |
| Volume Resistivity | ≥1.0 × 10¹⁴ Ω·cm | ASTM D257 |
| Dielectric Strength | ≥20 kV/mm | ASTM D149 |
| Linear Shrinkage | ≤0.5% | ASTM D412 |
| VOC Content | < 50 g/L (low-VOC grades available) | ISO 11890 |
Key Features & Technical Benefits
One-Part, Moisture-Cure System
No mixing required. Cures at room temperature when exposed to air moisture—ideal for fast and efficient production.Excellent Thermal Resistance
Maintains elasticity from –60 °C to +250 °C; specialized grades withstand peaks up to 300 °C.Superior Adhesion
Bonds effectively to metals, glass, ceramics, plastics, and other substrates. Primerless on many surfaces.Outstanding Weatherability
Resists UV, ozone, moisture, and aging—ensures long-term performance in outdoor and demanding environments.Excellent Electrical Insulation
Suitable for sealing and potting electronic components and connectors.Low Shrinkage & Clean Cure
Minimal by-product release (acetoxy, oxime, or alkoxy types), low odor, and low shrinkage during cure.Multiple Cure Chemistry Options
Acetoxy Cure: Fast skin time, ideal for general-purpose sealing
Neutral Cure (Oxime/Alkoxy): Non-corrosive to metals and sensitive electronics
Low-Volatile & Low-Emission Grades: Suitable for high-reliability and confined applications
Typical Applications
| Industry | Application Examples |
|---|---|
| Electronics | PCB potting, sensor sealing, EMI shielding, conformal coating |
| Automotive | Gaskets for engine, headlights, exhaust, and sensors |
| Aerospace | Wire harness sealing, electrical insulation, environmental gasketing |
| Construction | Window glazing, expansion joints, curtain wall sealants |
| Industrial | Equipment housings, vibration damping, weather-resistant sealing |
Why Choose Silico® RTV-1 Silicone Rubber?
✔ Ready-to-use, high-efficiency solution for sealing and bonding
✔ Broad temperature range and long-term durability
✔ Excellent adhesion across substrates without primer
✔ Multiple cure chemistries for tailored performance
✔ Silico® brand assurance: Consistency, customization, and technical support
Jessica G.
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