Shree Enterprises
XLPE
XLPE, or Cross-Linked Polyethylene, is a high-performance thermoset insulation material commonly used in electrical cables, thermal insulation, and HVAC applications. It offers superior thermal, mechanical, and chemical resistance compared to standard polyethylene.
XLPE is created by cross-linking the polymer chains of polyethylene, enhancing its:
Thermal resistance
Dielectric strength
Mechanical durability
Chemical and moisture resistance
🔥 High temperature resistance: Up to 90°C – 105°C (working); 250°C (short circuit)
⚡ Excellent dielectric properties: Ideal for high-voltage insulation
💧 Moisture resistant: Prevents tracking and water-tree formation
🛡️ Chemical & abrasion resistant
💪 High mechanical strength: Resistant to wear and tear
🔒 Long lifespan: Stable performance over decades
Primary application of XLPE
Low Voltage Cables (up to 1.1kV)
Medium Voltage Cables (3.3kV – 33kV)
High Voltage Cables (up to 132kV or more)
➡️ Used in power distribution, substations, industrial wiring.
Used for HVAC ducts, underdeck insulation, pipes, and panels.
| Property | Benefit |
|---|---|
| Closed-cell foam | Blocks heat and sound |
| Flexible and lightweight | Easy to install |
| Water vapor barrier | No moisture absorption |
| Fire-retardant grades | Available for safety |
Cross-linked PE pipes (often branded as PEX) are used for hot and cold water systems.
Flexible, corrosion-free, and scale-resistant.
| Property | Value (Typical) |
|---|---|
| Max Operating Temp | 90°C – 105°C |
| Short Circuit Temp | 250°C (for 5 seconds) |
| Dielectric Strength | > 500 kV/cm |
| Thermal Conductivity | ~0.4 W/m·K |
| Water Absorption | < 0.1% |
| Smoke & Flame Resistance | Available (Low-Smoke XLPE) |
🔌 Power & Utility
🏗️ Construction & Infrastructure
🏢 HVAC & Building Insulation
🚢 Marine & Offshore Cables
🛤️ Railways and Metro
🏥 Hospitals, IT Parks, Data Centers