8 Reasons Automotive OEMs Are Pivoting Back to Plated Plastics

Automotive original equipment manufacturers (OEMs) are rethinking their material choices as technologies and market conditions change. As a result, plated plastic automotive parts are regaining momentum. Advances in plastic plating now allow these components to support modern standards while providing premium aesthetics.

The New Imperatives Driving Automotive Design

Modern automotive manufacturing is as flexible as the conditions that shape it. Evolutions in the process come from nonnegotiable external demands, including new technological advances and market preferences.

In recent years, OEMs have been racing to extend their electric vehicle (EV) parts line and integrate complex sensors to meet rising consumer expectations for premium design without significantly increasing vehicle prices.

These demands are also coming amidst broader economic uncertainties, with supply chain volatility pushing manufacturers to rethink every aspect of the process, including their material choices.

This combination of circumstances has led to the resurgence of plastic plating in automotive OEMs, with the market being valued at $614.5 million in 2023 and expected to grow annually by 7.4%

1. Lightweighting for Efficiency

Weight reduction has always mattered in automotive design. However, the increasing adoption of EVs has made lightweight parts essential. Battery packs add a lot of heft to the vehicle, and every additional kilogram can impact acceleration and energy efficiency.

Replacing metal parts like car grilles or mirror caps with plated plastics can significantly reduce the car’s weight while maintaining a metallic appearance that many people want in their vehicle.

Manufacturers can use injection molding to create thin, precise shapes that can be plated to meet visual and tactile expectations that can match those of metal parts. They can even choose custom materials to ensure functionality and regulatory compliance, aside from aesthetics.

2. Enabling Advanced Vehicle Technology

Modern vehicles rely on sensors and connectivity systems that metal components may impede or actively interfere with. In these cases, plastic serves a clear functional advantage.

Radar and lidar technologies used in modern advanced driver-assistance systems (ADAS) cannot transmit effectively through solid metal. Certain angles may impact their effectiveness — automakers often have to account for a 10% reduction in range when they install a bumper cover in front of a vehicle’s sensor.

While some plated plastics may create a similar issue, they are often better than using pure metal. It can also be easier to engineer them with controlled metallic layer thicknesses that allow signals to pass while maintaining a uniform exterior. As a result, car designers can hide sensors behind grilles and emblems, preserving the vehicle’s style while maintaining performance.

Plated plastics also support the integration of antennas for GPS and 5G connectivity, as they can both shield and aid the transmission of these signals, depending on the application. As more devices become interconnected, materials that allow electronic functionality while keeping aesthetic appeal are becoming essential.

3. Improving Performance and Durability

Modern technology and plating processes are now able to produce plastic and plated plastic products that can meet or even exceed automotive standards. Plating or coating helps protect the material from defects, mechanical damage and corrosion.

Advances in surface preparation and plating have significantly improved coating adhesion and longevity. These improvements have transformed plated plastics into viable alternatives for metal in the exterior of automobiles, which can face harsh operating conditions. Plated plastics are able to withstand everyday wear and impact tests for automotive manufacturing, making widespread adoption more accessible.

4. Allowing Greater Design Freedom

Injection molding offers greater design flexibility than conventional metal stamping. Manufacturers can easily create complex shapes, cuts, mounting features and varied thicknesses in a single part rather than multiple metal components.

Combined with plating, this freedom allows designers to create aerodynamic structures and stylistic details that would be costly or impractical with metal. Companies can be much more creative and even create signature designs or functional elements that they can reuse across multiple models.

5. Ensuring Supply Chain Resilience and Cost-Effectiveness

Aside from its performance benefits, plated plastics offer tangible economic benefits. Plastic materials and manufacturing generally require less time and resources than metal stamping dies, which suits high-volume production.

From a supply chain perspective, plastics reduce companies’ dependence on volatile metal markets. Steel, for example, is experiencing an overproduction issue, possibly reaching 721 million tons by 2027. When left unresolved, these circumstances could lead to market volatility and threaten the viability of the entire industry. Using plastic allows OEMs to be more flexible, shorten lead times and minimize their exposure to global economic disruptions.

6. Supporting Sustainability Initiatives

Sustainability considerations are shaping OEM’s material selection. Modern plastic plating processes have evolved to address environmental and regulatory concerns that may have limited their adoption. Governments have also developed guidelines to further ensure compliance from companies.

Many manufacturers are adopting chrome-free and trivalent chromium systems that reduce hazardous waste while still creating high-quality finishes. California, for example, has banned the use of toxic hexavalent chromium, making it less accessible in the industry.

Lightweight plastic components also require less mining, which can be an environmentally destructive process without the right regulations, and for applications as demanding as the automotive industry.

7. Maintaining Premium Aesthetics

Many consumers associate metallic finishes with quality. In the payment card industry, for example, data shows that people are willing to pay more for a metal card, which feels more high-end. Plated plastics allow OEMs to deliver that premium look consistently across interior and exterior surfaces while keeping material and manufacturing costs under control.

Plated plastics enable uniform yet cost-effective finishes, enhancing perceived quality while ensuring efficient assembly. This design feature is especially important in vehicle interiors, where customers spend the most time.

8. Market Momentum and Industry Validation

The shift back to plated plastics is supported by market momentum. Market analyses show continued growth in plastic plating applications — the industry could be well worth over $1.68 billion by 2037.

Plating technologies are becoming essential in structural and electronic-adjacent roles, allowing for lightweight yet durable materials that suit numerous industries, including car manufacturing. With its efficient production and quality results, plated plastics have become essential in modern vehicle design, cementing their place in the market.

A Strategic Material Shift

Automotive companies are returning to plated plastics due to the need for high-quality, durable and lightweight yet cost-effective materials for manufacturing. Properly finished plastics currently align better with modern technologies and vehicle requirements than fully-metal vehicle bodies can. Embracing this material allows OEMs to keep up with economic and market demands and ensure their longevity in the automotive industry.

Emily Newton is the editor-in-chief of Revolutionized, a magazine exploring how innovations change our world.