PMMA (Acrylic) Injection Molding Service
Our PMMA injection molding technology is mature and reliable. We can precisely control the dimensional shrinkage rate of PMMA injection molded products, and deliver in as little as 5 days. We offer professional guidance, precise manufacturing processes, and a variety of surface treatment options to help you turn your ideas into reality, all at highly competitive prices.
Looking to Easily Obtain Acrylic (PMMA) Injection Molded Products?
Elimold’s one-stop acrylic (PMMA) injection molding service is your best choice. From finding the right product to more affordable custom molding solutions, our team is at your service 24/7. We offer a range of services including precision plastic molds, custom injection molding, rapid prototyping, mold design, post-processing, efficient assembly, and reliable delivery.
We are proud to be one of the few companies that can bring products from concept to reality, creating, manufacturing, and delivering acrylic injection molded parts using our extensive PMMA injection molding services. Whether you are conceiving a concept or developing a product, we streamline every step of the acrylic injection molding process.
Complete Production Support Team
We have a dedicated manufacturing team working behind the scenes to meet your production order needs. We manage the entire process and keep you updated on the latest progress.
Engineering & DFM
Mold Making
Injection Molding
Surface Treatments
Quality and Compliance
Assembly and Shipping
Low-Cost, One-Stop PMMA Injection Molding Services
Elimold offers best-in-class, comprehensive services specifically for PMMA materials, including project management, streamlined assembly, product distribution, and logistics, designed to simplify your production processes and support your business’s growth. Our comprehensive Polymethyl Methacrylate molding services help customers save costs, reduce operating expenses, shorten time-to-market for plastic products, and improve overall product quality. This is why we are the preferred acrylic plastic product manufacturer for many companies worldwide.
What is PMMA (Acrylic)?
PMMA, commonly known as plexiglass or acrylate, is chemically named polymethyl methacrylate (PMMA). Acrylic acid and its esters, used as raw materials for polymer polymerization, are collectively called acrylates, and the corresponding plastics are collectively called polyacrylic plastics, with polymethyl methacrylate being the most widely used. It is a transparent thermoplastic material that allows over 92% of sunlight to pass through, with an ultraviolet transmittance as high as 73.5%. Acrylic materials have high mechanical strength and possess characteristics such as heat resistance, cold resistance, corrosion resistance, good insulation properties, good dimensional stability, ease of molding, brittleness, easy solubility in organic solvents, insufficient surface hardness, and a tendency to attract lint. PMMA materials are widely known for their high transparency, high strength, and wide range of applications.
Acrylic Material Properties
Similar to other injection-molded plastics, the main properties of acrylic materials can be summarized as follows.
PMMA Physical Properties
- Density (g/cm3): 1.13-1.19
- Shrinkage Rate (%): 0.4-0.61
- Rockwell Hardness (R): 71-102
PMMA Mechanical Properties
- Tensile Strength at Yield (PSI): 6,390-10,700
- Elongation (%): 3.0-12(Break)
- Flexural Modulus (PSI): 247,000-509,000
- Flexural Strength (PSI): 6,770-18,900
PMMA Injection Molding
- Drying Temperature: 75-91°C
- Drying Time: 3.4-5.1 hrs
- Melt Temperature: 225-272°C
- Mold Temperature: 59.4-81.1°C
What is Acrylic Injection Molding?
Acrylic injection molding, also known as polymethyl methacrylate (PMMA) injection molding, involves heating an acrylic thermoplastic polymer material to a molten state. This molten material is then injected into a custom mold using high-pressure injection molding equipment. After cooling, the acrylic resin solidifies, forming the shape of the mold. Compared to thermoforming, this method has a higher initial lead time and mold cost, but offers lower unit costs for mass production and repeat orders. Furthermore, this process enables the high-precision, high-volume manufacturing of complex and delicate parts.
PMMA Grades Injection Molding Properties
Plexiglass (General Purpose Polymethyl methacrylate)
Plexiglas PMMA offers exceptional optical clarity and can be easily molded into various shapes and sizes, providing design flexibility. Plexiglass also exhibits good chemical resistance, making it suitable for environments with risks of contact with chemicals or solvents. These properties make it an ideal material for a wide range of general applications.
Altuglas (High Impact Strength Polymethyl methacrylate)
Altuglas PMMA is renowned for its exceptional impact resistance, even at low temperatures. Despite its high impact resistance, Altuglas® maintains good optical transparency. Additionally, it exhibits excellent resistance to UV degradation, thus performing well in outdoor environments.
Optix (Optical Grade PMMA)
Optix PMMA is known for its exceptional optical clarity and extremely low distortion, maintaining its shape and optical properties under a wide range of environmental conditions. Therefore, it is ideal for applications requiring high precision and high-quality optical components. Furthermore, Optix offers excellent transparency and biocompatibility, making it suitable for medical devices.
Lucite (High-Performance PMMA)
Lucite PMMA is favored for its high strength and excellent UV resistance, ensuring long-term stable performance in outdoor applications. Because Lucite combines strength and resistance to environmental factors, it is an excellent choice for high-performance environments where reliability is paramount.
Acrylite (UV-Resistant Polymethyl Methacrylate)
Acrylite PMMA is specifically designed for UV protection. It effectively blocks harmful UV rays, and despite its UV resistance, it maintains optical transparency, ensuring no impact on visibility or light transmittance. Acrylite is known for its durability, maintaining good performance even outdoors. It is resistant to yellowing and aging, making it ideal for manufacturing durable, weather-resistant products.
Ready to Start Your Acrylic Injection Molding Project?
Get a free quote for your custom acrylic injection molding project. Our team of experts is ready to help you achieve high-volume production with superior quality.
From Design to Assembly: Turning Your Ideas into Reality
Looking for a partner to help your company take the design, manufacturing, and distribution of PMMA plastic products to the next level? Our goal is to become your strategic partner. We can complete the design, manufacturing, assembly, and warehousing of acrylic plastic products in China at highly competitive international prices. With our in-house factories and manufacturing centers, we can transform your concepts from sketches into reality and ultimately deliver them to your customers. Whether your PMMA product is still just a concept, an improvement on an existing product or component, or you are currently in production but need to work with multiple suppliers from design to assembly and shipping, we can streamline the process for you.
PMMA Injection Molding Factory
Our in-house factory in Shenzhen, China, is ready to meet your needs around the clock. Operating 24/7, 365 days a year, we possess injection molding capabilities and management experience to ensure the smooth completion of your projects. Elimold’s in-house injection molding factory boasts over 130 injection molding machines of various tonnages, ranging from 75 tons to 2200 tons, allowing us to fully meet your diverse plastic manufacturing needs. Whether you need to produce plastic parts for your business or want to prototype a brand-new product, Elimold will assist you throughout the entire process. This is why we are recognized as one of the leading companies in the custom plastic mold industry.
Cleanroom Injection Molding Workshop Specifically Designed for Acrylic Plastics Products
We pride ourselves on our advanced manufacturing capabilities, including our dedicated cleanroom injection molding workshop. Our commitment to precision and quality extends to every stage of the production process, and cleanroom injection molding is no exception. This unit is specifically designed for the production of precision PMMA components that require more stringent environmental control than standard production facilities, meeting ISO cleanroom standards. This enables our partners to produce precision parts while maintaining the required cleanliness and detail, without incurring exorbitant costs.
PMMA Injection Molding Project Management Experience
Our inventory control helps you avoid stockpiling unnecessary PMMA plastic products, thus saving unnecessary expenses. Partnering with Elimold allows you to produce on demand, eliminating reliance on unreliable forecasts and concerns about excessive or insufficient inventory. With our fast delivery cycles and exceptional customer service, we work closely with you to ensure the success of every project. Furthermore, our Just-In-Time (JIT) inventory strategy allows you to obtain the required quantity of materials as needed, reducing acrylic product inventory and holding costs, and further improving ROI.
Reverse Engineering Services for Acrylic Plastic Products
Elimold offers comprehensive prototyping and reverse engineering support. We can reverse engineer any sample you provide. We have a thorough understanding of the strengths and weaknesses of various acrylic material applications and can guide every project. Understanding the properties of materials is key to ensuring product success throughout its entire lifecycle. Our superior service and efficient production ensure timely delivery and high-quality service, and in addition to reverse engineering, we also offer emergency manufacturing and delivery, as well as value-added manufacturing solutions.
Secondary Processing of Acrylic Components
We offer a range of post-molding processing services for clients requiring value-added services beyond PMMA molded parts. We provide decorative and coating services such as pad printing, hot stamping, painting, electroplating, and shielding to meet your diverse needs. In addition, we offer ultrasonic welding and thermal riveting services to meet your molding connection requirements. If your project requires packaging or assembly, we offer a variety of packaging solutions to provide you with comprehensive packaging services. Furthermore, Elimold also provides CNC machining services for acrylic and other transparent injection molded materials, such as drilling, tapping, milling, and turning.
Engineering & 3D Prototyping
Elimold is frequently invited to assist clients with the design and development of PMMA plastic parts and the prototyping of new products. If you are focused on speed to market, our in-house 3D printing service can provide solutions; alternatively, you can consider developing rapid-prototyping soft molds in our in-house mold workshop. As a full-service injection molding company, we offer a range of product design and engineering services to help you develop the shape, size, and function of your parts for successful injection molding.
Precision Quality Assurance
We streamline production processes and solve problems through innovative methods, enabling us to produce high-quality, complex PMMA parts and components cost-effectively. Our quality management system adheres to ISO 9001:2015 standards, with comprehensive plans and procedures in place for daily operations and every production run. Every new Elimold project begins with a comprehensive project review, including an in-depth analysis of the inspection requirements for specific parts, ensuring we fully understand your product quality needs from the outset. Our quality assurance department also provides additional services, including complete product validation, process capability studies, and PPAP surveys.
Mold Transfer Services
Elimold also offers seamless mold transfer services, directly saving businesses valuable resources and time. We have extensive experience handling complex transitions, ensuring a smooth mold transfer even after a breakdown in business relationships. Our streamlined processes minimize transition time, enabling rapid integration and resumption of production operations. We understand the importance of maintaining product quality and specifications throughout the transfer process. Elimold has a fully equipped in-house mold workshop capable of quickly responding to anticipated or unexpected mold adjustment needs. We are committed not only to bridging gaps caused by strained partnerships but also to providing businesses with pathways to improve efficiency and refocus on core business objectives.
FAQ
When designing PMMA injection molds, stress concentration must be prioritized, wall thickness optimized to prevent warping and shrinkage marks, and uniform cooling ensured for consistent part quality. Gate design and location are crucial for controlling flow rate and minimizing visible marks on finished parts.
Challenges include managing PMMA's susceptibility to thermal degradation at high temperatures, which can affect part quality. Controlling mold temperature and injection parameters is critical for preventing surface defects such as bubbles or flow marks. Furthermore, PMMA is prone to stress cracking and scratches, requiring extra care during molding and post-processing.
PMMA is known for its superior transparency and UV resistance, making it ideal for outdoor applications. However, while polycarbonate offers better impact resistance, it is more prone to yellowing and scratching compared to PMMA.
Yes, PMMA can be modified to enhance its specific properties, such as adding color, improving impact resistance, or enhancing UV stability, making it suitable for a variety of applications, including indoor and outdoor.
If you want ultra-clear and scratch-resistant products (such as lenses or LED lampshades), PMMA (acrylic) is your best choice. However, if the product needs to be robust and impact-resistant (such as automotive headlight covers or protective face shields), PC (polycarbonate) is more suitable.
Yes, PMMA can be used in two-color injection molding, typically as an outer layer to achieve a beautiful, transparent surface effect. It works well with underlayer materials such as ABS or PC, enhancing strength. Just ensure the materials bond firmly to prevent parts from separating.
Yes, as long as you use FDA-approved food-grade PMMA. It is non-toxic, odorless, and has good heat resistance.
PMMA offers better transparency and scratch resistance than PC, but has lower impact strength. For higher impact resistance requirements, impact-modified PMMA can be used.
PMMA boasts higher transparency (up to 92% light transmittance) and lower haze, making it ideal for manufacturing lenses, light guides, and display panels. PC is stronger but has slightly lower transparency.
Acrylic materials are inherently lightfast; standard PMMA can maintain its transparency for 5-10 years outdoors. UV-resistant acrylic materials maintain their transparency for even longer, even with noticeable yellowing.
Injection-molded polymethyl methacrylate (PMMA) can withstand many mild chemicals to resist corrosion, but it is susceptible to chemical cracking or hazing caused by strong solvents (such as acetone and toluene). Alcohol and mild cleaning agents are relatively safe.
While PC and specialty polymers offer impact resistance, PMMA remains the preferred material when transparency, scratch resistance, and lightweight product design are important.
Yes, PMMA can be processed using high-temperature processes such as heating and thermoforming without sacrificing transparency.
PMMA is flammable and must be kept away from open flames; at the melting points mentioned below, it will melt rather than break.
Yes, PMMA can be colored or dyed, provided that its transparency is not significantly altered.
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