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RIBtype® is an interchangeable rubber stamp system of ribbed-back type for printing dates, codes, and other information that changes frequently.

What is RIBtype?

RIBtype® is an interchangeable rubber stamp system of ribbed-back type for printing dates, codes, and other information that changes frequently.

Like a tongue and groove system, "ribs" on the back of the type interlock with ribs on a stamping device so you can create your own message and change them as needed. Perfect for lot numbers, part marking, date codes, etc.

RIBtype sets of letters and numbers are readily available in sizes from 1/16" to 2" character heights, and we can manufacture custom pieces of artwork, words/phrases, complex mats, and more. It makes RIBtype a versatile and economical solution to your printing needs.

Made-to-Order RIBtype

We can make most things into RIBtype -- custom letters, text, phrases, artwork, multi-line imprints, etc. Using custom RIBtype can save labor costs, reduce human error, and make superior imprints. Most custom type ships after two business days.

Printing Methods

  • Hand Stamps
  • Metal Self-Inkers
  • Rocker Mounts
  • Roll Printers
  • Automatic Printers such as roll coders and reciprocating coders


RIBtype is used in such a variety of ways that it is impossible to list them all. Some common uses include:
  • Date codes
  • Model numbers and Lot numbers
  • Plant identification
  • Large date coding
  • Lumber marking
  • Personalized products
  • Embossing into pottery, jewelry, and other crafts
  • And more!

RIBtype Specs

RIBtype® rubber type is made of premium quality rubber or synthetic materials according to your requirements. Type is manufactured to a thickness of .210", +/- .003", the most exacting tolerances in the industry...guaranteed. This ensures uniform type thicknesses for the best impressions. The alignment of our type meets the same exacting tolerances. The "ribs" on RIBtype are symmetrical and perfectly match to the ribs on RIBtype® base sheets. This precision fit helps ensure that type seats uniformly and stays in place during printing. RIBtype is proudly made in the USA.

RIBtype® rubber type is made of premium quality rubber or synthetic materials according to your requirements

About United RIBtype

United RIBtype is the largest manufacturer of ribbed-back rubber type in North America and the proud supplier of type to over 40 countries throughout the world. With the most exacting tolerances in the industry, we offer fast, expert service; precision quality products and personal service. Our mission is to provide our customers with the highest quality ribbed rubber type and unparalleled expertise.

United RIBtype is a division of Indiana Stamp which has been providing marking and sign solutions since 1947. Together with Indiana Signworks, the three divisions makeup Indiana Stamp Companies and work together out of our 30,000 square foot plant in Fort Wayne, Indiana.

The Story

When we began manufacturing ribbed rubber type in the 1960s, no one dreamed we would one day become the premier rubber type supplier in the United States, but fast forward 40-odd years and millions of pieces of type and that is exactly where we are. It's been an exciting and sometimes dizzying evolution that has seen us become the provider of precision ribbed rubber type to over 40 countries worldwide.  

In the 1960s, Indiana Stamp began to manufacture ribbed rubber type in-house after finding that service from other manufacturers was slow and prices were high. As we perfected our processes and began receiving positive customer feedback, we recognized an opportunity for a supplier with fast service, high quality, and reasonable prices. To ensure our manufacturing process would yield only the best products, ISC invested in state-of-the-art equipment and the highest quality molds and it became standard procedure to check each and every order for precise alignment and thickness. In 1988, active marketing for the RIBtype product line began and in 1989, United RIBtype began operating as its own company.

The customer response was fantastic. RIBtype quickly became known for it's unparalleled quality, service, and precision thickness and alignment. Competitive companies could not match the quality and our share of the market quickly grew. United RIBtype is now the largest manufacturer of ribbed rubber type in the United States. All RIBtype products are proudly made in the USA at our facility in Fort Wayne, Indiana. We continue to focus on offering fast, expert service and precision quality products at competitive prices.

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