Flame Retardant PVC Compound
- Compared to ordinary PVC insulation, flame-retardant PVC insulation reduces the rate at which flames spread along cables.
- It helps cables pass vertical flame retardancy tests or bundle flame retardancy tests.
- Depending on the formulation, it can be used for cable insulation and sheathing, maintaining good mechanical and electrical properties.
Product Detailed Specifications
Appearance & Structure
Shape: Flat cylindrical or irregular granules
Color: White, gray, black, or other custom colors
Surface: Clean and uniform, free of visible impurities
Base resin: PVC (polyvinyl chloride)
Plasticizer system: DINP, DOTP, or phthalate-free plasticizers
Stabilizer system: Lead-free, calcium-zinc based stabilizers
Fillers: Calcium carbonate and other fillers, content adjusted according to performance
Functional additives: Flame retardants, smoke suppressants (optional), UV stabilizers (optional, suitable for outdoor use)
Structure Parameters
| Compound Type | Application Position | PVC Base Resin | Plasticizer System | Filler Content | Flame Retardant System | Special Additives | Other Features |
| Flame Retardant PVC Insulation 70°C | Insulation | K67 Suspension | DINP or equivalent | Medium (20–30 phr) | Standard FR system | – | Good electrical properties, easy stripping |
| Flame Retardant PVC Insulation 90°C | Insulation | K67 Suspension | DOTP or non-phthalate | Medium | Enhanced FR system | Anti-oxidant package | Improved heat and flame performance |
| Flame Retardant PVC Sheathing 70°C | Sheathing | K65 Suspension | DINP or equivalent | Medium–High | Standard FR system | Smoke suppressing additives | Good mechanical strength, suitable for black sheath |
| Low Smoke Flame Retardant PVC Sheathing | Sheathing | K65 Suspension | DOTP or non-phthalate | Medium | Optimized FR + smoke system | Smoke and acid suppressor | Lower smoke generation, better fire safety |
Note: The above structural parameters are typical examples. Specific formula ratios and special additives can be adjusted according to customer requirements and cable standards.
Technical Specifications
| Compound Type | Hardness (Shore A) | Density (g/cm³) | Tensile Strength (MPa) | Elongation at Break (%) | Volume Resistivity (Ω·cm) | Thermal Stability (°C / min) | Brittleness Temperature (°C) | Flame Retardant Performance | Recommended Processing Temperature (°C) |
| Flame Retardant PVC Insulation 70°C | 90 ± 3 | 1.45 ± 0.03 | ≥ 12.5 | ≥ 200 | ≥ 1.0 × 10¹² | 200 / ≥ 80 | ≤ -15 | Typical IEC 60332-1 single wire test | 150–175 |
| Flame Retardant PVC Insulation 90°C | 92 ± 3 | 1.46 ± 0.03 | ≥ 13.5 | ≥ 200 | ≥ 1.0 × 10¹² | 200 / ≥ 90 | ≤ -10 | Enhanced FR performance | 155–180 |
| Flame Retardant PVC Sheathing 70°C | 88 ± 3 | 1.48 ± 0.03 | ≥ 11.5 | ≥ 180 | ≥ 1.0 × 10⁹ | 200 / ≥ 80 | ≤ -15 | IEC 60332-1, typical VW-1 (single cable) | 155–185 |
| Low Smoke Flame Retardant PVC Sheathing | 88 ± 3 | 1.50 ± 0.03 | ≥ 11.5 | ≥ 180 | ≥ 1.0 × 10⁹ | 200 / ≥ 80 | ≤ -15 | Low smoke, passed typical flame tests | 155–185 |
Note: The above are examples of common technical parameters for reference only and do not guarantee the final result. Detailed data sheets and test reports can be provided upon request.
Key Advantages of ZMS Flame Retardant PVC Compounds
1. Reliable Flame Retardant Properties
Designed to help cables pass typical flame retardant tests such as IEC 60332-1 and similar standards, ensuring consistent flame retardant performance between batches. Commonly used for insulation and sheath materials.
2. Stable Cable Extrusion Production Lines
FR PVC material exhibits good melt flow and thermal stability during the injection molding process. The extruded cable sheath layer has a smooth surface and uniform diameter, making it suitable for high-speed extrusion and continuous production.
3. Balanced Mechanical & Electrical Properties
Maintains the required tensile strength and elongation, exhibits good flexibility and bending properties, and provides reliable electrical insulation performance throughout processing.
4. Environmentally Friendly
Utilizes a lead-free calcium-zinc stabilizer system and offers formulations compliant with RoHS and REACH standards. Phthalate-free or low-toxicity plasticizers can be selected based on market demand.
5. Customizable Formulations
Hardness, color, flame retardancy rating, and smoke performance are all adjustable. UV resistance, cold resistance, or oil resistance can be added to meet specific application requirements. Suitable for different operating temperature ratings (70°C/90°C) and various cable standards.
ZMS Material Services & Logistics
Professional Technical Support
ZMS’s experienced materials engineers provide guidance on compound selection, cable insulation design, and custom formulations for various grades. We ensure that every batch meets your electrical, mechanical, and fire safety requirements.
Quality Assurance & After-Sales Service
Each batch of material pellets undergoes rigorous quality control, including density, dielectric strength, and flame retardancy testing. Our after-sales team is available to provide consultation, troubleshooting, and replacement services if necessary.
Customized Packaging Solutions
ZMS Material compounds are supplied in pellet or granular form and are typically packaged in moisture-proof polyethylene bags, kraft paper drums, or plastic drums. We can also provide custom packaging with custom graphics to protect the integrity of the material during transportation and storage.
Flexible Shipping & Delivery
We work with reliable logistics partners to offer global shipping services, including container, pallet, or bulk shipping. Dedicated personnel and meticulously planned shipping procedures prevent moisture, heat, or mechanical damage, ensuring the compound arrives in optimal condition.