Sustainable Plastics
3 minutes

The use of sustainable plastics in the manufacturing of automotive parts reduces reliance on fossil fuels, reduces carbon emissions and promotes a circular economy. This paper explores in depth the benefits of sustainable plastics in automotive parts manufacturing.

Types of plastics in automotive manufacturing

Each category offers unique benefits and applications, helping to reduce the environmental impact of vehicle production and usage.


Polyvinyl chloride (PVC or vinyl) is a widely used synthetic polymer that is polymerized from vinyl chloride monomers. Due to its versatility, the PVC injection molding process is usually used to manufacture automotive parts. PVC is used in automotive interiors for dashboards, door panels, and upholstery. In exteriors, it finds applications in window seals, weatherstrips, and underbody coatings due to its durability and cost-effectiveness.


PLA is known for its biodegradability, making it an environmentally friendly choice. It has good mechanical properties, although it is generally less durable than traditional plastics. In automotive manufacturing, PLA is used for interior components and trim. Its applications include instrument panel parts, panels and decorative elements where mechanical stress is relatively low.


Polytrimethyl terephthalate (PTT) is a kind of general purpose thermoplastic polymer with high performance, which is derived from petrochemical and renewable energy. PTT is known for its durability, elasticity and stain resistance. In automobile manufacturing, it is widely used in automobile interior, carpet, seat fabric.


Polybutanediol succinate (PBS) is biodegradable and has good thermal and mechanical properties, making it a universal material for automotive parts, suitable for manufacturing automotive parts in processes such as injection molding, extrusion and CNC machining.


Nylon is a highly analytical compound. With the most superior comprehensive properties, including mechanical strength, toughness, mechanical shock absorption, wear resistance, tensile strength and elastic modulus, often used in the manufacture of mechanical structure parts and maintainable parts.


Polyfuranoate (PEF) is a high-performance bioplastic polymer suitable for a variety of automotive applications due to its durability and environmental benefits. Compared with PET, PEF has superior barrier properties and can better protect gases such as oxygen and carbon dioxide. It is also biodegradable. In automotive manufacturing, PEF is used in fuel system components, containers and packaging that require excellent barrier properties to maintain the integrity of their contents.


POM, often known by the trade name Delrin, is the most machinable engineering thermoplastic among plastics. POM (Delrin) is often the best choice for CNC machining plastic parts that require high precision, high stiffness, low friction, excellent dimensional stability at high temperatures, and extremely low water absorption.


ABS is one of the most common thermoplastic materials, with good mechanical properties, excellent impact strength, high heat resistance and good machinability. ABS has low density and is ideal for lightweight applications. Cnc-machined ABS parts are often used as prototypes before injection molding for mass production.


rABS are derived from recycled ABS products such as electronic casings, automotive parts and consumer goods. It is a versatile and durable recycled plastic that retains the high impact resistance, toughness and finish of the original ABS, while having good dimensional stability and ease of processing. In automotive manufacturing, rABS are used for interiors, dashboard components and various accessories.


PP polypropylene, referred to as PP, is a polymer made of propylene by addition polymerization. White waxy material, transparent and light in appearance. It has high stiffness, high hardness and high surface strength. In automobile manufacturing, it is suitable for wear-resistant parts and transmission structures.

How to choose the right material to make automotive parts?

Selecting the right material for automotive parts requires consideration of several aspects, such as density, mechanical strength, durability, weight, heat resistance and other factors. Materials can be selected according to the specific use to meet specific performance requirements.

If you are struggling with choosing automotive plastic materials or finding plastic manufacturing services, BOYI can assist you. They offer competitive pricing for manufacturing services, ensuring your products are made with high quality and reliability, giving you confidence in your choices.

Benefits of using sustainable plastics in automotive manufacturing

Using sustainable plastics in automotive manufacturing offers several key benefits:

  1. Environmental Impact: They reduce dependence on finite fossil fuels and lower greenhouse gas emissions compared to conventional plastics.
  2. Resource Efficiency: Utilizing renewable or recycled materials conserves natural resources and promotes a circular economy.
  3. Regulatory Compliance: Helps automakers meet increasingly stringent environmental regulations and consumer demand for eco-friendly products.
  4. Weight Reduction: Many sustainable plastics are lighter than traditional materials, contributing to improved fuel efficiency and lower carbon emissions.
  5. Innovation and Market Differentiation: Using sustainable materials can enhance brand reputation and appeal to environmentally conscious consumers.
  6. End-of-Life Options: Biodegradable options offer potential for easier recycling or disposal, reducing environmental impact at the end of product life.

Future prospects

The future of sustainable plastics in automotive manufacturing looks promising, driven by advancements in material science, recycling technologies, and regulatory support. Continued collaboration across industries and research sectors will accelerate innovation and enable automakers to meet sustainability goals effectively.


Sustainable plastics offer a viable solution to reduce the automotive industry’s environmental impact. While challenges remain, the benefits of reduced carbon emissions, resource efficiency, and regulatory compliance make them an attractive option. 

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