Abstract: Making paper for corrugating medium includes forming a sheet of pulp material, partially drying the sheet of pulp material to provide a partially dried sheet, applying a crack-reducing agent to surfaces of the partially dried sheet, and providing a sheet of paper by drying the partially dried sheet after applying the crack-reducing agent. Forming a sheet of pulp material may include providing a pulp slurry to a headbox having a slice and carrying the pulp slurry that exits from the slice away from the headbox using, for example, a Fourdrinier. The Fourdrinier may also dry the sheet.