31 Incorporated

Contact details

  • 100 Enterprise Dr.
  • 43832 Newcomerstown
  • United States of America


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About Us

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In 1961, 31 Inc. was founded by Bob Cornell, nephew of the originator of Tech Rubber. After working 15 years for Tech, Bob broke away to start his own company at the age of 32. Searching for a name, Bob remembered the story of how Phillips 66 Oil Company was named using the age of its founder. Liking the idea, he attempted to name his company "32". Trademarks blocked his attempt, so he decided on the name 31 Incorporated. While it seems a more fitting name, our brand name "X-tra Seal" tends to be easily forgotten. 31 Inc. is easily remembered and also translates very easily into other languages.

Since 1985, 31 Inc. has experienced dramatic growth not only domestically but also in the international marketplace. With its International Headquarters in the small farming community of Newcomerstown, OH USA, hundreds of families worldwide depend on 31 Inc. for their livelihoods.


Dedicated to manufacturing quality tire repair materials, 31 Inc. has implemented rigorous quality control procedures. In house quality measurement and control is assigned to trained individuals who closely monitor production at every stage of manufacturing. Every incoming and 31 Inc. mixed batch is tested against predetermined standards. The standards have been proven by many years of successful product performance in the field. Raw materials as well as finished products are tested in 31 Inc's. modern lab, which contains various pieces of "high tech" equipment including a variety of special test equipment developed and used exclusively by 31 Inc. Controlled and reported properties include tensile strength, modulus, elongation, hardness, specific gravity, viscosity and cure rate. These properties and characteristics are essential in establishing and maintaining consistently high quality production.

Training & Education...

31 Inc. is committed to training personnel on the application of tire repair materials. As part of our training and education, 31 Inc. offers X-tra Seal repair videos. These repair videos, dealing with subjects such as puncture and section repairs, show the proper methods of performing tire repairs recommended by the RMA, TIA, all major tire manufacturers.

As a part of our training and education program, 31 Inc. conducts on-site training for distributors, technicians and users. Our qualified regional instructors, teach proper industry approved repair procedures and practices, giving technicians, installers, and users practical hands-on experience

Research & Development...

Research and development for new and existing products is conducted by 31 Inc. qualified chemists and engineers. Outside laboratories are used when tests are needed to evaluate product and cannot be conducted in house. The BF Goodrich Research and Development Testing Center, the world famous Standard Testing Labs, and other prominent Akron, OH area testing facilities are used. The chemists, engineers and technicians working with 31 Inc. have over 100 years of combined experience in rubber and rubber product R&D. This experience has been gained not only at 31 Inc., but also in years of working for major companies such as Goodyear, Cooper, Kex, and Hercules. These technicians are committed to supplying all types of high quality products and the technology needed to serve the industry's needs.

Exhibitor at the following trade fair

Automechanika 2018

11.09.2018 - 15.09.2018 Hall: 12.1 Stand: C 50