As an industry leader in precision machined and fabricated plastic parts, National Plastics and Seals offers high-quality products made from an extensive range of materials. Whether you’re looking for a standard component or require a custom solution, our experienced team will ensure all of your project’s needs are met.

As both an in-house fabricator and full-line distributor of plastic sheet, rod, and tube profiles, we offer competitive pricing, on-time delivery, and unsurpassed customer support. Below, you can learn more about the materials we work with, our machining and fabrication services, and the custom solutions we offer.

Plastic Material Offerings

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At National Plastics and Seals, we bring over 35 years of expertise to the plastic and rubber component industry. Not only do we offer a multitude of plastic materials and formulations, but we work closely with you throughout each project to ensure the material you select will deliver the reliability and results you’re looking for.

Since our customers come from diverse backgrounds, we work with many types of materials, using our state-of-the-art in-house fabrication and machining centers to tailor each component to your needs. Some of the most common materials we work with include:

In addition to these popular options, we also work with many other materials, like fiberglass, fluoropolymers, ABS, epoxy, PVC, and much more. Each of these materials offers a unique degree of mechanical strength, weather resistance, durability, and other qualities. If you’re not certain what the best option for your application is, our knowledgeable team is happy to help.

Precision Machined Plastic Components

Precision Machined Plastic Components

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Demanding applications often require parts with tight tolerances, fine surface finishes, and highly accurate dimensions. National Plastics and Seals meets these needs, delivering precision machined components that perform optimally. Whether you only need one part or thousands, our highly trained staff will quickly and expertly guide your project from prototype development to finished product delivery.

Our manufacturing facilities are well-stocked with a wide range of raw materials and the equipment needed to create parts for virtually any application. In addition to offering milling and turning services, we also perform welding, annealing, plastic polishing, and more.

Custom Plastic Fabrication

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There are many fabrication methods that can be used, depending on product volume and the type of material involved. At National Plastics and Seals, our custom in-house plastic fabrication services begin with a design file and the selection of the right material and color choice for your project. Depending on your needs, we also offer design and full-size prototyping services.

We also offer additional services like custom packaging, drop shipping, and build-to-order capabilities. Some of our most popular custom-fabricated products include:

Advertising Solutions
Advertising Solutions
Brochure and Literature Holders
Brochure and Literature Holders
Bulk Food Bins
Bulk Food Bins
Industrial Supply Dispensers
Industrial Supply Dispensers
Machine Guards
Machine Guards
Routing Signs
Routing Signs
Safety Guarding
Safety Guarding
Table Tents
Table Tents
And Much More!
And Much More!
Custom Heat Shrink Tubing

Custom Heat Shrink Tubing

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Heat shrink tubing is a thermoplastic tube that gets smaller when exposed to heat. It is often used to snugly conform to wires for insulation purposes and offers abrasion resistance as well as environmental protection. Heat shrink tubing can be used to bundle wires together or repair insulation on stranded and solid wire conductors, joints, and terminals.

Our custom heat shrink products come in an extensive range of materials, sizes, shrink ratios, and colors. We fulfill any type of order, whether you require a single prototype, a low-volume quantity, a high-volume production run, or a blanket order.

Valve Seal and Seats Manufacturing

Valve Seals and Seats Manufacturing

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Valve seals play an important role in many industry-diverse assemblies. They are a mechanical solution for preventing fluids or gasses from leaking out of a valve, while also keeping the system clean and free from debris. These products must be manufactured with precision to ensure they can form a tight seal between the valve’s stationary and moving parts.

Valve seats are the part of a valve that the seal rests against. They must be made from durable, wear-resistant materials that will be able to withstand the high pressures and temperatures present in their end-use application. As a leading manufacturer of valve seals and seats, we have decades of experience creating reliable products for some of the world’s most demanding industries. Our valve seats and seals are manufactured to meet application-specific requirements for the automotive industry, aerospace, marine, and more.

Custom and Stock O-Rings and Seals

Custom and Stock O-Rings and Seals

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O-rings play an important role in a wide range of industrial applications. These mechanical gaskets are loops of elastomers with round cross sections. They are designed to sit in between two parts and create a durable seal that prevents gasses or liquids from escaping.

These highly versatile components are used in both static and dynamic applications that involve movement between the parts, such as in a rotating pump shaft or a hydraulic cylinder. In addition to carrying a wide selection of stock O-rings and seals, we also develop custom products from quality, high-performance materials.

Custom Fiberglass Sleeves

Custom Fiberglass Sleeves

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We engineer custom fiberglass sleeves to comfortably surround wires and cables, without requiring the application of heat to achieve the necessary snug fit. These products offer a unique range of benefits, including durability and resistance to very high temperatures.

Since fiberglass sleeves can be braided or resin-saturated, they will not become brittle, melt, or burn, making them a reliable solution for demanding environments. As an industry leader in electrical insulation products, we offer fiberglass sleeving according to your specific UL, CSA, and temperature class rating requirements.

Acrylic Laser Cutting

Acrylic Laser Cutting

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Acrylic laser cutting offers a fast, accurate, and precise method for cutting acrylic materials into the desired shape. The process involves focusing a high-powered CO₂ laser beam on the acrylic’s surface, where the intense heat vaporizes the material along the intended path. The result is a smooth, clean cut that requires no additional finishing and meets tight tolerance requirements

National Plastics and Seals offers acrylic laser cutting services to meet the needs of various industries, including aerospace, automotive, packaging, and many more. Our automated laser cutting machines follow pre-programmed instructions to cut acrylic materials with optimal speed and precision.

Why Work With National Plastics and Seals

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National Plastics and Seals has nearly four decades of experience meeting the needs of the world’s most demanding industries. As an ISO 9001:2015 certified company, we offer reliable access to an extensive range of materials and deliver scalable, cost-competitive solutions. We specialize in ensuring aggressive lead times and meeting prompt deadlines.

With our large distribution network and fast customer response time, you can be certain you’ll receive the quality solution you need, no matter how challenging your application is. To get started, request a quote today.