Description
Key Features
- Flame-retardant performance for improved safety in demanding electrical applications
- Two-component polyurethane system with room-temperature curing
- Unique split-pack design for easy mixing and convenient field use
- Low viscosity for excellent penetration into fine gaps and irregular cavities
- Reliable electrical insulation for cable joints and electrical connectors
- Waterproof and moisture-resistant performance for wet and humid environments
- Flexible and abrasion-resistant cured layer for long-term protection
- Solvent-free formulation, helping reduce micropores after curing
- No heating required, with simple application and no special equipment needed
Typical Applications
RCS-2131 is suitable for mechanical protection, sealing, and electrical insulation of low and medium voltage cable joints and connectors up to 36 kV.
- Indoor and outdoor cable joint protection
- Underground cable connector insulation and sealing
- Underwater cable and connector waterproof sealing
- Marine cable sealing and protection
- Repair and sealing of cold shrink joints for mining cables
- Repair of damaged outer sheaths for mining cables
- Protection of electrical cable connections exposed to moisture or corrosive environments
Component A Properties
| Item | Typical Value | Test Method / Condition |
| Appearance | Black liquid | Visual |
| Viscosity | 1050–1160 cps | EN ISO 2555, 23°C / 50% RH |
| Density | 1.11 g/ml | ISO 3675, 23°C / 50% RH |
Component B Properties
| Item | Typical Value | Test Method / Condition |
| Appearance | Transparent liquid | Visual |
| Viscosity | 1050–1150 cps | EN ISO 2555, 23°C / 50% RH |
| Density | 1.08 g/ml | ISO 3675, 23°C / 50% RH |
Technical Data
| No. | Item | Typical Value | Standard / Condition |
| 1 | Weight Mixing Ratio | A : B = 1 : 6 | — |
| 2 | Operating Time | 8–15 min | 23°C / 50% RH |
| 3 | Hardness | Shore A 70 | EN ISO 868 |
| 4 | Tensile Strength | > 3 MPa | EN ISO 527 |
| 5 | Elongation at Break | 260% | EN ISO 527 |
| 6 | Dielectric Constant | < 10 | IEC 60250 |
| 7 | Volume Resistivity | 10¹³ Ω·cm | IEC 60250 |
| 8 | Dielectric Strength | 18 kV/mm | EN 60243-1 |
Installation Method
- Prepare a clean and dry mixing container.
- Pour Component A and Component B into the container according to the specified weight mixing ratio of 1:6.
- Mix thoroughly until the material becomes uniform.
- Pour the mixed resin into the area or device to be encapsulated.
- Allow the resin to cure completely at room temperature.
Handling and Storage Precautions
- Keep the product sealed during storage.
- Once opened, the material should be used up as soon as possible.
- Mixing containers, tools, and application surfaces must be dry and free from water or moisture.
- Spilled resin may be cleaned with a suitable solvent.
- Do not allow solvent to enter unused material or sealed resin packs.
Packaging
Standard packaging: Customized.
Other package sizes and weights can be customized according to customer requirements.
Important Notice
Users should fully understand the product instructions before use. If necessary, please consult our technical engineers for further guidance and support. Improper application, unsuitable operating conditions, or failure to follow recommended procedures may result in product failure or loss. RICHON ELECTRIC shall not be held responsible for losses or liabilities caused by improper use of the product.
Why Choose RCS-2131
RCS-2131 is designed for customers who require a reliable resin system for cable joint insulation and sealing in demanding environments. It combines flame retardancy, waterproof performance, flexibility, electrical insulation, and easy field application in one integrated solution.




