Each section of EZ-Trac has the guide wire already imbedded underneath so all you have to do is glue or tack the track to your layout. Stops and turns are also available.
If desired, you can fill the joints with spackle and paint with a standard interior flat or matte paint of your color choice.
A groove for a smaller special contact wire can be cut in on the top surface of the layout. Then spackled over and painted with a flat or matte interior paint.
For tracking reliability the wire needs to be 10 to 20 mils (.010-.020) below the surface of the painted roadway and ALL the wire must be the same depth consistently.
This video will help keep your vehicles tuned up so they don't run into each other or off the Roadway.
Keep your roadway clean! Dust, debris, hair and carpet fibers can jamb axles causing problems with steering mechanisms.