How to Glue Train Ballast

Select ballast material based on color and size to fit the look and scale of the model railroad. Various model ballast materials are available at hobby supply outlets specializing in model railroading. Mix ballasts of one or more colors to create a custom color unique for your railroad.

Sprinkle the ballast material between the rails and on the along the edge of the roadbed outside the rails. Use a small paint brush to spread the ballast uniformly. Keep the edge of the ballast on the outside of the rails straight.

Mix one part white glue, four parts water and one part isopropyl alcohol. Drip this mixture onto the ballast with an eye dropper or other small tube. Drip the glue on the ballast to the point it saturates the ballast but does not form pools of glue.

Wipe off any glue that landed or spattered onto the rails with a damp cloth or sponge. Allow the glue to dry overnight. The glue should be clear when it dries and hold the ballast in place.