Much More
than Urethane

Industry-Leading Service

TPC, Inc., situated in Fontana, California, operates a cutting-edge manufacturing facility dedicated to producing top-tier, American-made polyurethane products suitable for a diverse array of industries such as transportation, military, fitness, and technology. With the use of sophisticated urethane processing equipment, 250-ton presses, a modern machine shop, and the expertise of its skilled workforce, TPC is equipped to fabricate custom molded items tailored to meet specific demands, ensuring timely and efficient delivery.

The TPC Mission

Since the beginning, TPC has been focused on three driving business principles: manufacture a high-quality product, offer competitive pricing, and – above all – provide our customers with outstanding service every step of the way. Our experience, our investments and our dedication to the craft all contribute to making these principles a reality, and we work to ensure that our customers never disagree.

Innovative from the Start


A veteran of World War Two and founder of TPC Inc., William “Bill” Lang returned home to Los Angeles and soon found work selling turret punch presses for a major East Coast firm. As a man with a strong mechanical aptitude, a great personality, and solid work ethic, it’s no wonder Bill became the top salesman in the country. A humble Bill Lang would later recall, “With the post-war aerospace boom here in L.A., selling machinery to the big boys was almost like shooting fish in a barrel!”


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However, Bill had a keen eye for opportunity. And with all of the turret punch presses he had sold on the West Coast, he felt there would be a huge potential for support tooling, especially the polyurethane strippers that were molded from this relatively new elastomer. As Bill experimented at home in his garage, he was able to develop the right ratio of pre-polymer, curative and cure time to create what he felt would best combination for his urethane strippers. Obviously, there was no shortage of machines, and where there were machines, there were customers to field test his new product and eventually sell to, and as the story goes, the rest is history. Within a year, Bill was able to quit his day job and devote all of his time to casting polyurethane and besides, it was a great opportunity to work his young sons into the business.


From the family garage the new company expanded into their first manufacturing plant in Los Angeles followed by an expansion to a larger facility in Santa Fe Springs. As the business grew so did their product offering that now included wheels and rollers, sheets and bar stock, automotive suspension bushings and a host of other custom parts that lends itself to the ubiquitous polyurethane material.


By the late 1980’s Bill semi retired and turned the day to day operation of the business over to his sons Steven and Bill Jr. Under Steve’s watch the Plant relocated to a modern business park in Rancho Cucamonga where TPC (short for Turret Punch Company) would eventually take over six buildings. As business continued to grow Steve expanded his product line and brought more of what he used to sub-contract in house. In 2009, TPC acquired KD Associates, a leading manufacturer of elevator/escalator wheels and rollers based in Southern California.


In 2011, The company purchased a new 20,000 square foot building near the famous California Speedway in Fontana, California and added additional equipment that would now make them 100% self sufficient. Services now include design and engineering featuring the latest CAD equipment, precision CNC machining, reaction injection molding (RIM) and traditional plastic injection molding and extruding.


As the company approaches their thirty-fifth year in business a third generation is being groomed to take over key positions within the organization by starting from the ground up just as the last generation did before them, working in all facets of the company while attending college, and that’s exactly the way William Lang would have wanted it.

An Industry Standard in Urethane

As the oil and gas industry has matured over the last century, Polyurethane has proven itself to be an indispensable material. The remarkable abrasion resistance of polyurethane allows these materials to excel in the most unforgiving environments that exploration and drilling has to offer. The chemical resistance of polyurethanes has made it an indispensable part of gas-well completions and gas production. Robust material formulations have been customized over the years to suit the unique and demanding conditions that can exist in the oil and gas sectors today. As the energy sector continues to change and develop, we will continue to work with leading companies to produce solutions that are tailored to the unique needs of the industry. Ask us how our innovations have helped shaped the industry of today.

Afraid of flying? You shouldn’t be! The aviation industry expanded exponentially over the last few decades, with more planes flying than ever before. Worldwide bodies of testing and regulation have created one of the safest transport systems for persons and commerce of the modern age. Throughout these rigorous bouts of testing, urethane has proven itself to be an unparalleled material within aviation and aerospace. The extreme operating conditions of not just planes, but rockets as well, require a material with substantial properties to perform as desired. Urethane has gained accolade within this sector as an indispensable material. In the production of aerospace components, Polyurethane also has importance in various aspects of fabrication of complex metal shapes required for aerospace.

When lives are on the line, you need material that works, no questions asked. The demanding nature of todays military applications require expertise and oversight that comes with years of industry experience. Demand by todays top armed forces for Polyurethane in various systems within the military demonstrates how this material has proven itself in the field. Having quality materials you can rely on matters. You can rest easy knowing polyurethane will perform as needed, not just here at home, but overseas as well.

Urethane has been the un-sung hero of the fitness industry for many years. Lots of the “Rubber” you see at your gym is really Polyurethane. Soft coverings for weight plates, cable guides on weight machines, and shock absorbing bumpers have been made out of urethane for many years. The wheels on many exercise machine systems (rowers / stair machines) are made of urethane, due to the need to be long-lasting under intense conditions. As the next generation of fitness equipment prepares to enter the market, we stand ready to help our customers find the solutions.

Almost since its inception, the modern automotive industry has viewed urethane as an undeniably robust and resistant material. It had early use in dunnage applications, which ensured that components stayed damage free while in transit between various factories and buildings, and this practice continues to this day. Its early use on axels helped bring in the age of independent suspension. In working with industry leaders, we have found material formulations with extremely low rebound properties, for when vibration of a vehicle needs to be addressed. Innovations in polyurethane have helped motor vehicles becomes the quiet and smooth experience we take for granted today.