Welcome to WARCO, your premier manufacturer for quality rubber gasket & sealing materials. We have serviced the American rubber gasket industry for over 115 years with an extensive range of made to order & standard rubber gasket materials. Offering three distinct forms of rubber materials – sheet rubber, molded rubber, and extruded & spliced rubber.
Our extensive R&D compounding lab, vast library of over 7,000 formulations and in-house mixing set us apart, empowering you to design and manufacture a rubber gasket material which exhibits the key properties which your application requires.
Begin the gasket material selection process by requesting a quote today.
With over 115 years of excellence, WARCO has become an industry-leading rubber elastomer manufacturer in sheet, molds, and extrusions. Unlike many others in our industry, we control every step of the process; from research and development to the packaged finished product. Our unique mix of process control & experience makes us the ideal manufacturer when custom physicals, specific chemical resistances or bespoke shapes are required.
WARCO’s ability to create custom formulations, test, mix and manufacture countless rubber products which, combined with our highly talented and experienced personnel, allows us to consistently produce quality products to meet your needs in a variety of ways.
WARCO is a fully integrated manufacturer. Uniquely equipped with a full service Research and Development laboratory, a team of certified chemists, full mixing capabilities, and over 6,000 rubber compounds on hand, WARCO is well suited to formulate compounds that are specifically designed for your application.

WARCO proudly executes on its heritage as the premier domestic producer of application-specific engineered sheet rubber products; stocking a broad line of thin gauge and heavy sheet rubber products.
Our manufacturing capabilities include custom mixing and compounding, calendaring, custom dimensions, private branding, slitting, and a variety of finishes including smooth cellophane finish, matte finish, paper finish, and fabric finish.

WARCO specializes in custom extrusions, from one-time special orders to high volume runs. Our extruders can produce custom rubber profiles in a wide variety of sizes and shapes including cable jacketing, O-ring cord, tubing, rubber seals, squares and rectangles.
Our experienced team can provide product selection and design support, whether you require standard extruded rubber gaskets or custom extruded rubber profiles.
With our in-house formulation and mixing capabilities coupled with die design and fabrication on state-of-the-art die making equipment, we can design a rubber compound to meet your specific requirements for quality and performance while minimizing cost.

Custom rubber formulations and broad molding production capabilities position us to deliver cost-effective solutions for long or short runs. We work closely with our customers to understand their challenges and to provide them with customized solutions.
From start to finish, we aid you in each stage of production. We offer tool design assistance and provide an array of presses that may be utilized for compression and transfer molding. Additionally, we also provide a wide variety of vertical & horizontal injection presses.
Additionally, our state-of-the-art cryogenic deflashing is used whenever possible to eliminate hand trimming and produce clean parts at tremendous cost savings.

When starting your process of selecting the ideal gasket material for your application, we recommend starting with exploring our various standard offerings and modifying to meet your needs. Below is a few standard rubber materials used in gasket & sealing applications. See our full range of catalog offerings.
Our certified technical and customer service team is well equipped to guide you through the gasket material selection process. We’ve found that our customers start this process with one of the three methods listed below. Reach out today to speak with our experienced rubber experts.
Our extensive library of formulations provides a comprehensive list of specifications met with our rubber parts, spanning multiple industries and unique applications. Additionally, our team is well equipped to design a material that will meet your specification. See the an expanded list of specifications.
As each polymer has a unique set of characteristics, correct determination of the polymer which best suits your application is critical. View the 9 different options below and contact our team for aid in selecting the ideal material for your requirements.
We understand that each application has a different set of requirements across a variety of dimensions that your rubber gasket material must exhibit. Given your application, our team is well suited to design a material that exhibits the right physical properties, key chemical resistances, and retains the needed shape.
We have already serviced a multiple of industries and are well acquainted with the requirements of each. Select a few of our industries served below to learn more.
Speak with our team to start designing the correct material for your application.



Our team is waiting and ready to aid your gasket material selection process. Elevate your project with precision-engineered rubber gaskets from WARCO. Requesting a quote is the first step towards securing the ideal solution for your application.
You may find our contact information below or you may submit a digital form found below. We look forward to servicing your rubber needs.
Business Hours: Monday – Friday: 7:30am to 4:30pm (Pacific Time)




























