A partnership between the University of Maine and Oak Ridge National Laboratory will use ground-up trees and bioplastics to make “very strong plastics” that can be used in 3D printing, officials said Thursday.

The 3D printing, which will print items one layer at a time, could be used to make boat hull molds, shelters, building components, and tooling for composites and wind blades, among other possibilities.

The $20 million project will be funded by the U.S. Department of Energy’s Advanced Manufacturing Office.

ORNL is considered the leading laboratory for the type of work known as additive manufacturing, said U.S. Senator Lamar Alexander, a Tennessee Republican who was among the officials at the announcement in Washington, D.C., on Thursday.