Bullfrog Snot

The name may make it sound like a joke, but it's Snot. Bullfrog Snot is a one-part, self-curing liquid plastic designed to be applied to the tread of model locomotive wheels. When it dries 24 hours after application, it forms a thin, greenish traction tire. I used a scrap of stripwood to apply Bullfrog Snot to one set of wheels on two locomotives, an Atlas HO scale Fairbanks-Morse H-16-44 and a Life-Like N scale RS-2. The results were significant.