Tekni-Plex (Wayne, Pa.) said today that it has acquired Dunn Industries, a Manchester, N.H.–based maker of specialty extrusion tubing for medical device uses.

Financial terms of the deal were not disclosed. The Dunn buy is the seventh acquisition Tekni-Plex has made in the past four years as it seeks to grow both organically and through acquisitions.

Dunn, founded in 1987, is known for its tight tolerance, small diameter medical device tubing, working with a wide range of thermoplastic materials and providing both standard and custom-engineered tubing, according to Tekni-Plex. Dunn’s product line complements the microextrusion tubing that Tekni-Plex’s Natvar business unit makes.

Going forward, Dunn will be known as Dunn Industries, a Tekni-Plex business, with Dunn’s former president Duane Dunn serving as general manager.

“Tekni-Plex already has a significant stake in the medical device market via its Colorite medical compounds and Natvar medical tubing business. We are now looking to grow the number of solutions we provide by expanding our product offering and manufacturing capabilities,” Tekni-Plex CEO Paul J. Young said in a news release.

“With speed-to-market a critical concern in this market sector, as well as the desire for additional support from suppliers, this acquisition will help make Tekni-Plex an even stronger partner to medical device companies around the world,” Young said.

Dunn tubing can have diameters as small as 0.008 in. (outer diameter) x 0.004-in. (inner diameter) and as large as 0.480 in. — serving a variety of applications.

“Because of Tekni-Plex’s existing global manufacturing footprint, including its new production capability in China, Dunn’s technology will now reach new geographic regions. This will help medical device companies find faster solutions and bring their products to market via reduced timelines,” Dunn said. “On behalf of the Dunn employees, we look forward to growing our customer base via Tekni-Plex’s global reach.”