Celebrating more than 40 years of business

With over 40 years of experience, CDI is an industry leader in the design, manufacturing, and processing of high-quality, high-performance seals and components for the oil and gas industry. We are highly experienced in a broad scope of advanced materials – from elastomers to advanced fluoropolymers and thermoplastics. With strategic locations around the globe, we provide critical solutions, on time and to your specification, anywhere in the world.

We are partners

Striving to be responsive, innovative, approachable, and dependable partners providing high-performance components on-time and to specification.

We are collaborators

Seeking a full understanding of your needs and drawing on a diverse team of specialists to provide value from concept to delivery.

We are innovators

Building on advanced materials science to design, engineer, and manufacture state-of-the-art components.

We are facilitators

Partnering with our customers to solve the most difficult challenges and reliably bring advanced products to market.

We are problem solvers

Ensuring that in addition to everything else, real solutions arrive on-time and to specification.

We are CDI Energy Products—your custom-engineering specialists

We are preferred suppliers to a large number of major OEMs, each of which has special needs in dealing with elevated temperatures, chemical and media resistance, extreme pressure, wear, and lubricity. With this fully integrated range of capabilities, CDI is the smart choice for all your high-performance plastic and elastomeric manufacturing needs.

Over the years, CDI Energy Product has experienced some significant growth, developed some revolutionary patented technology in both materials and design, and has proudly supported our customers across the globe. Throughout our history, we have focused on delivering quality without compromise of safety. Today, CDI Energy Products is a division of Fenner Advanced Sealing Technologies – a part of the Global Group Fenner. Our dedication to reliability and integrity is the same today as it was when we were founded in 1974.



  1. 1974-1980

    February 12th, 1980


    Cott Dowall, Inc. founded as a distributor of O-rings, polyseals, and braided packing in a 1750 sq. ft. office and warehouse in Houston, Texas.


    Awarded first patent for non-adjustable rod packing.


    Developed our own plastics processing operation.

  2. 1982-1989

    June 2nd, 1982


    Engineering added as a key customer service.


    Multiseals is founded


    CDI Aflas® compounds approved for North Sea applications.

  3. 1999 - 2005

    May 4th, 2005


    Developed patented SigmaSeal® system for control valves.


    Wellington Holdings purchased by Fenner, becomes a part of Fenner Advanced Sealing Technologies.


    Portfolio of performance thermoplastics earned Norsok M710 approval.

  4. 2007 - 2011

    June 6th, 2007


    CDI Seals built new facility near Houston, Texas.


    Production of high-performance PEEK connectors begun.


    Manufacturing added new robotics.

  5. 2011 - 2018

    June 6th, 2018


    Longtime Southeast Asia distributor, Multiseals, was acquired, furthering a global footprint.


    AIP Precision Machining was acquired.


    Michelin Completes the Acquisition of Fenner PLC


Quality and HSSE


For us, health, safety, and the environment are of the utmost importance. Our first priority is to ensure our employees go home in the same condition they came to work.

Ensuring quality of product – AND QUALITY OF LIFE

From prototype to production, from concept to completion, we address quality at every step in the process. Our investment in state-of-the-art manufacturing technology, from robotics to clean rooms, ensures the highest level of precision. Our commitment to quality does not stop at production. CDI excels at developing solutions and delivering results within agreed lead times. To meet client schedules without interruption, we track performance at each stage in the manufacturing process through delivery of the final product. We focus on meeting our customers’ needs and meeting their requirements. Customer requirements are met through detailed contract review, well defined and repeatable processes and statistically based inspection plans in accordance with API Specification Q1 Ninth Edition. API Q1 certification gives CDI an additional competitive advantage within the Oil and Gas market for licensing to API product specifications. We are also maintaining our ISO 9001:2015 certification. Health, safety and environmental

For us, health, safety, and the environment are of the utmost importance. Our first priority is to ensure our employees go home the same way they came to work. Creating an environment and culture of safety first benefits our customers by allowing us to recruit and retain the best of the best. Our ISO 14001 and OHSAS 18001 management systems help us continuously improve on all elements of HSSE while ensuring regulatory compliance. We value HSSE for the same reasons you do. We care about our people, customers, and corporate responsibility.




Our global operations ensure that you receive the support you need when you need it. Leading operators and service companies have come to rely on us as responsive, innovative partners in producing components built to make their applications work with optimal performance. With manufacturing expertise in key oil and gas markets, we ensure that products arrive on-time and to specification.

Our strategic locations around the world offer you a global team of experts available to provide sustained technical support wherever you are.


Houston houses the CDI Energy Products international headquarters. For over four decades, CDI has been providing customers with high-quality, precision machined components. Our seasoned staff includes individuals who were here with us from our very first day. Their dedication has helped us to be the company we are today.

Our manufacturing facility houses over 220,000 sq. ft. of equipment along with technical and engineering staff. This unique integration of skills enables our team to provide customers with solutions that specifically designed to each application.


Since 1987, CDI Multiseals in Singapore has provided customers a comprehensive range of sealing solutions and services. As part of the global CDI Energy Products organization, we specifically serve the Asia-Pacific and Middle Eastern markets.

We specialize in the distribution and production of dynamic and static seals designed for high-performance in the most severe conditions.

As the preferred supplier for multiple OEMs, we offer an outstanding level of service – from quotation to order fulfillment. We firmly believe quality products, services and business relationships are the keys to our success and growth.