Excellent Stability Mineral Filled PP Polypropylene Compounds For Automotive Door Trim Panels

High Rigidity Mineral Filled Polypropylene Compounds For Automotive Door Trim Panels With Excellent Dimensional Stability

Product Description

Our Mineral Filled Polypropylene Compounds are specifically engineered for automotive interior applications, with a focus on door trim panels that demand superior dimensional stability, rigidity, and long-lasting performance. By incorporating high-quality mineral fillers such as talc or calcium carbonate, this PP compound significantly improves stiffness, heat resistance, and warpage control compared to standard polypropylene.

Automotive door trim panels require a perfect balance of mechanical strength, aesthetic appearance, and lightweight performance. This compound offers all these benefits, ensuring that the trim panels remain durable and attractive throughout the vehicle’s life cycle. The material is available in natural, black, beige, and customized automotive-grade colors, ensuring seamless integration with modern interior design trends.

Properties Data Sheet

Notes: The general guidelines are only for reference. Exact settings have to follow the product and machine conditions.

Avoid contact with other materials, dust and debris in the injection processing.

Avoid long time stay in the barrel in the injection processing.

Usage Notes

• Pre-drying at 80–100°C for 2–3 hours is recommended to minimize moisture-related defects during molding.

• Design engineers should optimize wall thickness (2.5–3.5mm typical) to achieve the best balance between stiffness and weight reduction.

• Avoid direct exposure to aggressive solvents during assembly or cleaning to maintain long-term performance.

• For improved weathering resistance, UV-stabilized or heat-resistant variants can be selected based on specific OEM requirements.

Features, Advantages & Working Principle

• High Rigidity & Dimensional Stability – Mineral fillers reduce shrinkage and deformation, ensuring precise fit and finish.

• Excellent Heat Resistance – Withstands high interior cabin temperatures, preventing warping or softening.

• Lightweight with Cost Efficiency – Lower density compared to engineering plastics, reducing overall vehicle weight and fuel consumption.

• Enhanced Surface Quality – Supports textured, matte, or painted finishes for premium aesthetics.

• Durability – Resistant to scratches, aging, and long-term wear in daily automotive use.

• Eco-friendly & Recyclable – Complies with RoHS, REACH, and automotive OEM environmental standards.

The working principle is based on the synergistic effect of mineral reinforcement within the PP matrix, which reduces thermal expansion, enhances rigidity, and maintains consistent performance under fluctuating cabin conditions.

Application Scenarios

• Automotive Door Trim Panels (primary application)

• Dashboard and glove compartment covers

• Pillar trims and console housings

• Other structural interior parts requiring rigidity and dimensional stability

Parameter Options (Customizable)

• Filler content: 10–30% talc / calcium carbonate (adjustable)

• Colors: Black, beige, grey, natural, customized automotive colors

• MFI (Melt Flow Index): 8–20 g/10min (230°C, 2.16kg)

• Heat distortion temperature: up to 120°C

• Impact strength: adjustable for enhanced crash performance

Frequently Asked Questions (FAQ)

Q1: Are you a manufacturer or a trading company?
A1: We are a professional manufacturer specializing in modified engineering plastics, including PA6, PA66, PP and other reinforced, flame-retardant, heat-stabilized, UV-resistant and wear-resistant compounds. With our own R&D and production facilities, we provide high-quality materials directly from the factory.

Q2: Can you provide customized material solutions?
A2: Yes. We offer tailor-made formulations according to customer requirements, including reinforcement ratio, color, additives, mechanical strength, heat resistance and processing properties. Our technical team can work closely with you to develop materials that perfectly match your application.

Q3: What industries do your products mainly serve?
A3: Our products are widely used in automotive parts, household appliances, furniture components, industrial equipment, electronics, daily necessities and more. We focus on delivering reliable engineering plastics for demanding applications.

Q4: Do you provide free samples for testing?
A4: Yes, we can provide small quantity samples free of charge for quality testing and evaluation. The customer only needs to cover the freight cost.

Q5: What are your minimum order quantity (MOQ) and lead time?
A5: Our standard MOQ is usually 10 ton per order. Lead time is typically 10-20 working days depending on the quantity and material specifications.

Q6: How do you guarantee product quality?
A6: All products are manufactured under strict quality control standards. We use advanced testing equipment to check mechanical properties, thermal stability, flame retardancy and other performance indicators. Every batch comes with a COA (Certificate of Analysis) before delivery.

Q7: Which packaging and shipping methods do you use?
A7: Our standard packaging is 25kg bags with palletized loading to ensure safe transportation. We can also offer customized packaging as requested. Shipping options include sea, air and express delivery based on customer needs.

Q8: Do your products comply with international standards?
A8: Yes. Most of our engineering plastic compounds comply with RoHS, REACH, UL94, ISO9001 and other international standards. Specific compliance documents can be provided upon request.