LSZH vs PVC Cable Compounds: Which One Should You Choose?
When selecting a cable compound, one of the most common decisions is choosing between Low Smoke Zero Halogen (LSZH) and PVC (Polyvinyl Chloride).
Both materials are widely used in the wire and cable industry, but they serve different applications depending on fire safety requirements, environmental regulations, mechanical performance, and cost.
Understanding the differences between LSZH and PVC compounds helps manufacturers select the right material for every project.
1. Fire Safety
The biggest difference between LSZH and PVC is their behaviour during a fire.
- LSZH: Produces very low smoke and releases no halogen gases.
- PVC: Generates dense smoke and releases hydrogen chloride (HCl) gas when burned.
2. Smoke & Toxic Gas Emission
Smoke can be more dangerous than flames during a fire.
- LSZH improves visibility during evacuation.
- PVC emits dense smoke that reduces visibility.
- PVC also releases corrosive gases that can damage equipment.
For enclosed environments, LSZH compounds provide a safer solution.
3. Applications
Both compounds are widely used but in different environments.
- LSZH: Railways, airports, metros, hospitals, data centres and commercial buildings.
- PVC: House wiring, control cables, industrial cables, flexible cables and general power cables.
The right choice depends on the safety requirements of the installation.
4. Cost & Processing
PVC compounds are generally more economical and easier to process.
- Lower material cost
- Excellent processing characteristics
- Widely available for standard cable applications
LSZH compounds typically cost more due to specialised formulations and higher performance requirements.
5. Environmental Compliance
Modern cable projects increasingly require environmentally responsible materials.
- LSZH compounds are halogen-free and suitable for projects requiring enhanced environmental safety.
- PVC compounds can also comply with RoHS requirements when properly formulated but still contain chlorine.
Always verify compliance requirements before selecting a cable compound.
Choosing the Right Cable Compound
At Takkar Polychem Pvt. Ltd., we manufacture high-performance cable compounds designed for demanding wire and cable applications.
Our portfolio includes:
- LSZH Compounds
- PVC Insulation Compounds
- PVC Sheathing Compounds
- ZHFR Compounds
- Colour Masterbatches
- Functional Masterbatches
Our cable compounds are engineered for:
- Consistent processing performance
- Excellent electrical insulation
- Reliable flame retardancy
- Compliance with industry standards
Whether your application requires the fire safety advantages of LSZH or the versatility and cost-effectiveness of PVC, selecting the right compound is essential for long-term cable performance and safety.
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