Leveraging over 33 years of experience

quality custom injection molded components, and custom-built tools.

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Who We Are

Steven Plastics was founded in 1989, and today as a division of Primarc Industries, Steven Plastics is a plastic injection molding company specializing in precision custom parts, inserts, and finished products for a wide range of industries.

Our process begins with our instant online quote system. The online system enables you to submit your project details for an immediate quote on tooling, production processing, machining, assembly and packaging.

In addition, we offer multiple options for various types of injection mold builds based on their expected production cycles. We generally use steel for all mold builds for several reasons, including durability, and the added capability to injection mold a wide variety of complex parts. There are various types of steel used for a mold requiring plastic parts. While P- 20 is considered the workhorse of the industry, we also use other steel types depending on the situation and your specific requirements.

Our Services

Steven Plastics, through its acquisition of Nilan Tool, makes the highest quality rubber and plastic molds in house, and delivers CNC machining, contract manufacturing services, and quality plastic injection mold processing. We specialize in long run production, short run & service part production, mold sampling, insert molding, assembly, packaging and consumer product development and branding.

Engineering / Product Design

Innovative solutions to unique challenges. Steven Plastics has the expertise and capabilities to apply innovative solutions to your design and production needs.

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Tooling/Mold Making

Our expertise in mold construction enables us to provide our customers tools designed for maximum production efficiency, yielding molded products at competitive prices.

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Production

Steven Plastics combines state-of-the-art method of injection molding plus our capacity for secondary operations and assembly to provide customers complete mold-to-manufacture services under one roof.

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CNC Machining Services

Steven Plastics precision CNC Machining practices achieve a lower cost per part in a shorter lead time for nearly any small to medium, lift-by-hand sized component, whether of a shorter run or in large volume.

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Custom Plastic Injection Molding Services

For over 33 years Steven Plastics Inc/Primarc-Nilan has continued to specialize in Custom and Production Injection Molding Solutions with an in-house Technical Services Team delivering superior quality molds and injection molded parts to our global customers. We offer decades of experience in processing commodity and custom engineered plastic resins bringing solutions to complex plastic engineering applications. We strive to be known in the markets as the best partner for high quality mold building and custom plastic injection molding production.

SPI offers in-house tool design services to fabricate new plastic or rubber injection molds, and has both in-house and outside plastic mold building resources to provide cost effective solutions to new tooling. Our in-house tooling group also provides tooling maintenance and repairs to keep customer production running on-time.

Our business strategy and operating plan is built upon Teamwork, Process Control, and Technology. We believe that by combining the best talent with proper technology to control the injection molding process we will manufacture consistent high-quality parts for our customers.

Building your custom mold with Steven Plastics and running your production within the USA enables superior quality results with lower long term overall costs. The ease and ability to interact with local molding experts throughout the process will ensure that your needs are met, problems are solved, and goals are reached. Superior results on every project every time is our commitment to you. Contact us today, we are ready to be of service.

Our Certification

Steven Plastics is ISO certified 9001:2015. Special certification as critical component manufacturer for Perkin Elmer, Janus Automated Workstations, Sciclone and Zephyr liquid handlers. Operates 25 plastic injection molding machines from 95 Tons to 3000 Tons. Capacity to run 3 shifts.

Quality Guarantee

Steven Plastics works side-by-side with our customers, to deliver products that help them gain a competitive advantage in their markets. We deliver superior quality cost effective results that can only come from Teamwork.

Our Mission

Steven Plastic’s mission and commitment is to deliver superior results to our customer, build strong, lasting relationships and achieve profitable revenue for all. This mission is primary and instilled with every member of our Team. Our company’s continued success has been built on our daily practice of delivering on our promises to each of our customers, suppliers, and employees.

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