DULUTH, Minn. -

Duluth's Ikonics Corp. celebrated a $4.3 million expansion to its Morgan Park facility Thursday.

CEO Bill Ulland said the new 27,0000 square-foot addition will primarily focus on sound-deadening technology of aircraft.

Ikonics serves the aerospace and electronics market.

During the ribbon-cutting ceremony, Ulland said it was time to expand after interest from the chief engineer of General Electric, which is considered the largest jet engine manufacturer in the world.

"We showed him our technology and he said, you know, that is really cool, but I have to come to Duluth to make sure you are not doing this in your garage. And we were actually doing it in the corner of the warehouse over there, which was sort of like our garage,” Ulland joked.

The Ikonics building and expansion is located on the 2300-block of Commonwealth Avenue.

The building was constructed on the property in 2009.