Below are a few images of my latest track improvement rubber molding.
In order to preserve plastic bodies and wooden crash walls from carnage of violent collisions, I have added a layer of rubber molding to the crash walls. The molding is actually dubbed cove molding and is typically used at the base of interior walls to protect against damage or scuffing of painted surfaces. Cove molding adhesive (similar to Liquid Nails) is used to bond the molding to the surface in question and does and admirable job that is quick, easy and clean (any excess adhesive can be wiped off with warm water and a rag).
The molding comes in a variety of colors heights and thicknesses. I selected black four inch high by eighth inch thick. Home improvement stores carry this molding for about $.50 per linear foot. The molding has a horizontal ribbed surface on its back side that I used as a guide to cut the molding to the proper height to fit my crash walls. I cut the material with a scissors; however, it can be cut effectively with a table saw.