Ace Seal is a global manufacturer of custom o-rings, seals, gaskets and other molded rubber & plastic components

The Leading Manufacturer of Custom Rubber O-Rings, Gaskets & Seals

o-rings, gaskets, and seals

Ace Seal is a global manufacturer of custom o-rings, seals, gaskets and other molded rubber & plastic components

Since 1982, Ace Seal has been a worldwide leader in sealing solutions. We specialize in manufacturing standard and custom o-rings, seals, gaskets, molded rubber products, and more, using a variety of elastomers. Our experience and expertise enable us to provide custom rubber products for clients in a broad range of industries, from military and aerospace to medical, solar, and biotech. Based in Silicon Valley, we serve clients across the country and around the world.

Request a quote on the custom-molded rubber products you need, or contact Ace Seal to discuss your unique application. 


 Link to O-rings page
Custom Molded Rubber & Plastic Components Page
Link to EMI-Shielded O-Rings and Seals Page
Link to O-Ring Materials Page
Link to Custom Fabricated Page
 Link to Spliced and Vulcanized O-Rings Page
Link to Other Page
Link to Extrusions Page

Standard O-Rings, Gaskets & Molded Rubber Products

vulcanized o-rings

Ace Seal maintains a huge inventory of standard/stock molded rubber products. We offer o-rings, quad- and x-rings, and backup rings in all standard AS568 sizes, as well as gaskets and other products that meet various industrial and regulatory standards. Our selection of standard products includes:







Many of our standard products are available for same-day shipping. View our complete inventory or contact us for the stock molded rubber products you need.


Custom Capabilities

With our manufacturing capabilities, we can deliver custom rubber o-rings and extrusions, gaskets, and other components that match your unique specifications. Ace Seal will work with you to develop the perfect solution for your needs. We combine the right design and the right material to provide the performance and durability your application requires. Our custom manufacturing capabilities include:

We provide high precision custom molded rubber and plastic products in fast turnarounds and at competitive prices. Request a quote or contact us for the custom manufactured components you need.

Material Expertise

o-ring kit

Ace Seal has the molding experience and technology to work with a variety of rubber elastomers. We can provide o-rings, seals, and gaskets in materials to fit even the most challenging application. Rubber materials we work with include:

If you’re not sure which material is right for your needs, our expert team will help you select the elastomer that is best suited to your application and performance requirements. Contact us today.

Markets Served

The quality, precision, and reliability of our o-rings, gaskets, and other molded rubber products has made Ace Seal the manufacturer of choice for clients in a wide range of industries, clients who turn to us time and again for the sealing solutions their toughest applications require. While we can (and do!) provide products for any and all industries with sealing needs, the markets we work with the most include:

Contact Ace Seal today!

Ace Seal is your #1 source for high quality, high precision o-rings and custom rubber gaskets, seals, and other molded products. We provide the best products at the best prices with the best customer service you’ll find anywhere.

Request a quote on the standard or custom rubber products you need, or contact Ace Seal to learn more. We look forward to serving your sealing needs.

Ace Seal is also an authorized distributor of numerous other Molded Rubber Products, Custom O-rings and Seals & Gaskets related to the Sealing Industry.

Our San Jose facility provides both onsite Inventory Management and Stocking Programs for local customers. Contact our Product and Engineering Specialists with your questions and requests. We look forward to the opportunity to service your sealing requirements.

AS568 O-Ring Standard Size Chart
O Ring Materials Category page
Request a Quote from Ace Seal
Contact Ace Seal Today