The Experts in Rubber Sealing Solutions.

Leading the Industry in Design and Manufacturing Standards and Custom Rubber Seals

Over the last 50 years, Apple Rubber has provided high-quality, trusted rubber parts and seals to industries around the world. With an extensive o-ring inventory of over 300 million seals, Apple Rubber offers a wide range of sealing solutions that are completely customizable, including standard o-rings, MicrOrings™, medical seals, composite seals, silicone housing seals, MacrOrings™, custom molded shapes, Filter Seals® and more.

Small and Large Quantity Prototyping

In addition to expert design engineering, Apple Rubber’s in-house range of manufacturing capabilities also include custom prototyping, which sets us ahead of competitors. Our design engineers work directly with customers to provide immediate feedback on ways to improve prototype design and future production, which saves big on costs and lead time.

Through prototyping, engineers can reduce design risks, map out the preliminary design process, make customizations where necessary and manage time effectively.

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Quality Control

Every industry, from medical to automotive, sets strict quality regulations on manufactured parts. That’s why Apple Rubber takes the time to thoroughly test each part and material to ensure it meets the necessary standards.

From raw materials to finished products, Apple Rubber performs rigorous quality control testing every step of the production process. Our quality assurance testing includes a production process analyzer, tensile, density and FTIR testing.

To learn more about our quality control testing process, watch our short video.

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Apple Rubber Has It All 

With an extended range of sealing solutions, Apple Rubber offers a wide variety of rubber parts and seals to meet the requirements of any sealing application. Our precise in-house tooling allows us to tackle large and small quantity production for standard, complex and customized designs. 


In addition to AS568 standard sizes and ISO 3601 metric sizes, Apple Rubber also carries over 8,000 non-standard sizes in stock at all times. If we don’t have it, we can make it; our in-house tooling capabilities allow for expedited delivery of any size in large or small quantities. While we provide an extensive list of materials to choose from, our standard rubber materials include Viton®, Nitrile, Ethylene-Propylene, Fluorosilicone, Silicone and Neoprene®.


From the most exotic seals to microminiature shapes, Apple Rubber can custom design and mold any rubber seal to meet exact requirements. Some of the most popular custom molded shapes include molded inserts, diaphragms, lip seals, piston seals, bushings, poppets and connector seals. While Apple Rubber can seamlessly produce customized shapes, material selection is also customizable.


The strict regulations of the medical industry require precise sealing solutions that meet high standards. Apple Rubber medical seals offer tighter tolerances and ultra-low defect rates, making them a trusted solution for critical applications. Our fully automated inspection machines ensure all parts are thoroughly tested for both define defects and size.

Cleanroom/Medical Molding

Injection molding produces parts with quicker cycle times than compression or transfer molding. In addition, this type of molding gives manufacturers the ability to produce custom shapes with little flash or rubber waste, as well as an improved versatility in durometer shores, which typically run anywhere from 90 Shore A to 40 Shore A.

Apple Rubber design engineers have expertise through years of solving rubber sealing challenges for a wide range of industries.

For further questions about rubber parts and seals, design, or assistance, contact one of our engineers through our Engineer Request form.

Contact an Engineer