Automotive Lighting Injection Molding

Experience the excellence of Elimold’s plastic injection molding solutions for the automotive lighting industry, highlighting the superior quality of the car with superior design, performance and efficiency. Driving the automotive lighting industry forward with cutting-edge plastic injection molding technology

Automotive Lighting Injection Molding Solutions

Elimold provides high-quality components and maximum output to solve the production capacity and component quality problems of automotive lighting companies. The standards for automotive lighting injection molding parts are very high. Therefore, injection molding companies that manufacture parts have high quality standards, maximum availability of production equipment and stable processes. For this reason, Elimold provides complete solutions: from machines to automation and peripherals, to the services and consulting of our experts. We are a strong partner when it comes to choosing the right automotive lighting injection molding solution.

Automotive Lighting Injection Molding
Automotive Lighting Injection Mold

Your Trusted Automotive Production Partner

Elimold offers a wide variety of interior and exterior molded parts for the automotive lighting market. Our high quality standards and knowledge of lens grade materials have made us a top supplier to the headlamp, signal, and rear lamp markets.
We currently supply standard, reflector, and LED style lenses to several automotive customers. Our lens molding capabilities include polycarbonate and acrylic type lenses molded in clear, amber, and red. Elimold has developed specific and dedicated lens manufacturing cells with parts that utilize automated technology to eliminate all defects associated with contamination and handling. Our full range of lens manufacturing services includes all in-house photometric testing and protocols via our Hoffman SAE-010 reflectometer system.

Experts and Technology for Project Success

Elimold’s injection molding services for automotive lighting applications have three key success factors: employee expertise, technology, and craftsmanship. We were founded with a team of professional engineers, designers, machine operators, and project managers whose combined experience in injection molding is amazing.
On the technology side, we have over 70 state-of-the-art NISSEI injection molding machines with clamping pressures ranging from 40 tons all the way up to 2,000 tons. We are ISO 9001 certified for quality management and take a collaborative approach with each of our clients to ensure the desired outcome for each project.
We use the latest project management software to plan and coordinate the workflow of your project through our facilities. You will be able to track the progress of the entire process. A designated project manager provides monitoring and can update the project status at any time as needed. Updates can also be made via email and include digital photos of the molds and Gantt charts to help you track project milestones.

Plastic Injection Molding Car Decorate Warning Light Lamp Component

How Injection Molding Is Used in Automotive Manufacturing

The plastic injection molding process is very important in the automotive industry because consistency, safety, and quality are important parts of accident prevention. Molten plastic is injected into existing molds for signal lights, interior lights, and other automotive lights and lenses, then cooled and hardened. After the plastic solidifies, the manufacturer removes the product and checks its quality before shipping it to the customer.

The challenge of the plastic injection molding process in automotive and other industries is to create reliable, well-designed molds. Poorly designed molds can cause defects and create errors during assembly. Before manufacturing begins, each mold is checked for integrity and quality to prevent this from happening.


Polycarbonate (PC) is used in automotive headlights because it has an 80% to 90% light transmittance. In addition, PC maintains its properties over a wide temperature range. Acrylic (PMMA) is also used in automotive lighting because of its optical clarity, strength, and resistance to ultraviolet (UV) light.

Surface Finish

Plastic covers for interior lighting fixtures require a high-gloss finish. At the end of the moldmaking process, the moldmaker applies the appropriate injection molding surface finish to the mold. This finish is then transferred from the mold to the surface of the molded part during the molding process. High-gloss finish standards used in the automotive industry, as defined by two associations, the Society of the Plastics Industry (SPI) and the Association of German Engineers (VDI), are required. Especially in North America, high-gloss finishes that meet SPI standards A-1, A-2, and A-3 are required.

Advantages of Injection Molding in the Automotive Lighting Industry

  • Precision and Repeatability: High precision and repeatability are crucial in automotive manufacturing, which is the core reason why the automotive industry favors injection molding.
  • Complex Shape Design: Injection molding produces complex parts through a process called “screw injection”, which helps to manufacture delicate and complex parts.
  • Fast and Efficient Manufacturing: The fast production process ensures that automotive manufacturers can meet their component needs efficiently.
  • High Surface Finish Quality: Parts produced through injection molding have excellent surface finish quality, providing a smooth and flawless surface.
  • Color Variety: Injection molding allows the production of parts with a variety of textures and colors without the need for post-molding coloring processes.

Automotive lighting injection molding application

Both interior and exterior automotive lighting applications are best accomplished using lenses, covers, and housings made through the plastic injection molding manufacturing process, with each molded plastic lens being made from a resin to meet color and optical specifications, typically including clear, red, amber, or yellow. Of course, many of these lighting applications are now using LED lamps. LED lenses do not need to meet the more stringent plastic lens requirements, and more traditional MAPs can generate a lot of heat, but the industry is constantly pushing the boundaries of lens performance. Temperature and clarity are always factors that must be carefully considered when developing automotive lighting product specifications and selecting the appropriate plastic resin. Common resin choices for automotive lighting include polycarbonate and acrylic, but each resin comes in a variety of formulations depending on the product requirements. The molds used to make clear automotive lighting parts are highly polished and require special care to keep them in optimal condition.

Interior Automotive Lighting

Pocket lighting, illuminated cupholder lighting, instrument panel lighting, task lighting, light piping for accent lighting and more

Exterior Automotive Lighting

Projection, rear combination lamps (RCL), center high-mount stop lamps (CHMSLs), illuminated badging and more

Autonomous Vehicles

Controls and sensors, interior and exterior lighting, light detection and radar (LiDAR) optics, projection displays and more

Mass Transit

Exterior lighting, ambient interior lighting, task lighting, reading lighting, object lighting (door handles, cupholders, emergency brake), UV sterilization and more

Do you have questions about our solutions for the automotive lighting industry?

We will be happy to support you. Together we will find the right solution for your plastic injection molding production of automotive lighting parts.