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Help CenterST757M PP Virgin Resin Granules With Flame Retardant Properties
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As a specialized manufacturer at Shanghai Wenqin Plastics Co., Ltd., we've leveraged our ISO-certified production capabilities since 2020 to engineer ST757M PP Virgin Resin Granules with industry-leading flame retardancy. This premium-grade material delivers critical fire safety performance while maintaining the exceptional mechanical properties expected from virgin polypropylene compounds.
Our compact yet efficiently organized facility (under 1,000 m²) enables rigorous quality control throughout manufacturing, ensuring every batch meets stringent international standards. With certifications including ISO9001 and ISO14001, we maintain traceability from raw materials to finished granules.
The ST757M formulation represents a breakthrough for applications requiring both regulatory compliance and processing efficiency. Unlike recycled alternatives, our virgin resin guarantees consistent molecular structure and optimal additive dispersion – critical factors for reliable flame retardant performance.
Core Technical Advantages:
- Superior Flame Resistance: Achieves UL94 V-0 rating (0.8mm thickness) through advanced bromine-free FR system
- Mechanical Integrity: Maintains tensile strength >30MPa and impact resistance >5kJ/m²
- Thermal Stability: Heat deflection temperature (HDT) of 110°C @ 0.45MPa
- Processing Flexibility: Optimized melt flow index (12-18 g/10min) for complex mold filling
| Property | Test Method | Value |
|---|---|---|
| Density | ISO 1183 | 0.92 g/cm³ |
| Melt Flow Rate (230°C/2.16kg) | ISO 1133 | 15 g/10min |
| Tensile Strength at Yield | ISO 527 | 32 MPa |
| Flame Retardancy | UL94 | V-0 (0.8mm) |
Application-Specific Benefits:
- Electrical Components: Meets glow-wire requirements (GWT 750°C) for switchgear housings
- Automotive: Resistance to automotive fluids while passing FMVSS302 flammability tests
- Consumer Electronics: Halogen-free formulation suitable for eco-conscious manufacturers
Our global logistics network through Shanghai and Ningbo ports ensures timely delivery to your production facilities across North America, Europe, and Asia-Pacific regions. With 80% of our output serving international markets including automotive tier-1 suppliers and electronics OEMs, we understand critical supply chain requirements.
The ST757M compound undergoes seven-stage quality verification, including spectroscopic analysis and extrusion stability testing. Batch certificates include full traceability data and compliance statements for ISO, UL, and RoHS directives where applicable.
Frequently Asked Questions:
-
Q: What flame retardant classification does this material achieve?
A: Typically achieves UL94 V-0 rating at 0.8mm thickness in standard testing conditions. -
Q: Is the material suitable for food contact applications?
A: This specific grade is not FDA-compliant. For food-grade options, please inquire about our ST700 series. -
Q: What is the recommended processing temperature?
A: Optimal melt temperature ranges between 200-230°C depending on specific machinery and part geometry. -
Q: Do you provide material certification documentation?
A: Yes, we supply comprehensive certification packages including third-party test reports for flammability and mechanical properties. -
Q: Can custom colors be produced?
A: Custom coloration is available with MOQ requirements. Standard stock is natural/white.
Experience the Wenqin advantage: rigorous quality systems honed through certifications including ISO9001 and ISO14001, coupled with responsive technical support from our Shanghai-based engineering team. Contact us today to discuss your project requirements and request sample material for evaluation.
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