Welcome to NUBS Plastics, Inc.
Nubs Plastics Inc. is a leading plastic injection molding company in San Diego, CA. With over 25 years of experience, NUBS Plastics is a company that you can rely on. Our dedication sets us apart from the competition. We provide solutions to various industries, including medical, electronics, agriculture, consumer products, and more.
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As the leading Plastic Manufacturing Company, our aim is to produce state-of-the-art products that speak volumes about our commitment to quality and customer satisfaction. We continue to grow as a trusted plastic molding company for reliable production and consistent quality. Our team will achieve this goal by doing the following:
Our mission helps us stay focused as a Custom Plastic Injection Molding Company focused on delivering precise and dependable manufacturing solutions.
At NUBS Plastics, we maintain the highest level of quality control throughout the production process. We are ISO 9001:2015 certified and adhere to this benchmark from PO to delivery.
Multiple stringent quality checks under strict supervision ensure that only the best product reaches our customers. Rest assured with NUBS Plastics, you will never have to compromise on quality again!
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Our team of engineers have earned undergraduate and graduate degrees from nationally recognized universities specialty in plastics engineering. We can provide you with the appropriate recommendations for your product requirements.
Selecting the right material is crucial for any manufacturing process...
Plastic injection molding is our expertise and what we focus on. Ove...
Mold making is an integral part of the plastic injection molding...
At NUBS Plastics, we maintain the highest level of quality control...
For over 25 years NUBS Plastics has been manufacturing solutions for a wide variety of industries not limited to: Medical, Irrigation, Aerospace, Industrial, Military, Consumer Products
NUBS Plastics currently manufactures aerospace components for a variety of companies. Window frames, roller bearings and harnesses are just a few items we make for this important sector.
NUBS Plastics manufactures parts for some of the largest Medical and Pharmaceutical companies in the world. We have stepped up to answer the call to help improve the lives of others by providing quality healthcare products.
Being primarily the aftermarket industry, NUBS makes components and accessories that fit the latest vehicle models.
LED lights, lenses and housings are just some of the many different electronic parts we supply to our customers.
Fittings, valves, emitters, stakes, you name it, we make it! Nubs Plastics maintains a very large presence in this space and are very comfortable with high volume, long run production.
NUBS Plastics services many clients that market products divert to consumers. Pool + Spa, camping, sports and athletics and household products are just some of the spaces we are in.
Modern manufacturing needs precision and reliable output at every stage. Small errors in tooling can influence the final product quality and timelines. That is why powerful mold design and proper tooling systems are essential to every production process. Our Team at NUBS Plastics Inc. focuses on making molds that support smooth production without delays.
We operate as a Plastic Mold Manufacturing Company focused on precision and consistency.
Each mold undergoes careful design checks before moving to the manufacturing stage. Skilled engineers review dimensions, material flow, and performance before final approval. This approach helps reduce errors and keeps production cycles stable.
Our company supports industries that require consistent plastic components across batches. Businesses expect reliable tooling solutions that deliver the same results again and again. Strong tooling systems help us maintain our quality during long production runs.
We also work as a Custom Plastic Injection Molding Company to meet specific client needs.
Our engineers also work closely with clients to understand project details before starting production. Clear communication helps align expectations and timelines without confusion. Small improvements during the design stage often prevent bigger issues later in production.
Many mold making companies prefer working with teams that manage both mold creation and production support together. This setup reduces delays and keeps the entire process under better control. The goal remains simple. Deliver molds that perform well and support consistent output for every batch.
Finding a plastic manufacturer is easy. Finding one that actually partners with you from idea to final part is much more difficult.
As a plastic molding company, we believe in building long-term partnerships, not just delivering parts.
At NUBS Plastics, the process doesn’t start at production. It starts way earlier, when the design is still taking shape. Small decisions at that stage can save time, cost, and a lot of back-and-forth later. Our team works closely with you right from the beginning, within design resources and refining concepts before a single tool or part is made.
Proper, purpose-built mold tools are designed to hold up under real production requirements. As volumes scale, you can easily see the difference.
As a mold making company, we focus on creating tools that perform reliably over time.
Production stays consistent. Whether it’s a short run or ongoing repeat orders, we apply the same standards, the same attention.
And it doesn’t just stop once parts are made. Post-production support is part of the process. Packaging, finishing, and adjustments if needed. It’s a simple approach, but it works. We stay involved, stay precise, and deliver exactly what was promised.
Your Idea. Our Solution.






Whether you need help with the application process or anything else in between, our professionals are ready to assist you.
The initial capital investment is in the mold itself. Mold pricing can vary. It depends on how complex the part is. A simple mold might cost a few thousand dollars, while a more complex or high-precision one can run much higher.
A custom plastic injection molding company can help estimate these costs based on your specific design requirements. Part pricing is a fraction of that. Factors like part size, weight, material, and the number of cavities in the mold will affect your per-unit cost.
Most projects use thermoplastics. A plastic molding company typically works with materials like ABS, polypropylene, polyethylene, nylon, and polycarbonate are common choices. Others such as acrylic, acetal and pvc are also used. We even deal with some more exotic materials such as polysulfone and blends of materials as well.
Each one behaves differently. Some are tougher, some are more flexible, and some handle heat better. The right option depends on how the final part will be used.
It starts with a design. Once the part is finalized, a mold making company creates a mold to match its exact shape.
These molds are usually made from steel or aluminum. They’re machined, shaped, and then polished so the final parts come out clean and consistent. Before full production, the mold is tested to make sure everything runs the way it should.
Injection molding is the most widely used, but it’s not the only option. A plastic mold manufacturing company may also offer other processes depending on the application. There’s extrusion for continuous shapes, blow molding for hollow items like bottles, compression molding for certain solid parts, and rotational molding for larger hollow products. Each method fits a different kind of design and production need.
Timelines can vary depending on project complexity. Designing and building the mold can take a few weeks, sometimes longer for complex parts.
Once the mold is ready, actual production is much faster. Parts can be made in seconds or minutes, depending on the design.