Bullfrog Snot, Liquid Plastic Traction Tyre 1oz Easily applied and removed. 
Just a toothpick is all you'll need to install and a hobby knife to remove It's ready to go - 
no multi-part mixing no disassembly, special tools or surgical skills required. 
Cures at room temp in moments. No baking or nasty fumes Can be thinned out with plain 'ol water, 
if so desired It is easy to see your work, and it cures to virtually invisible Very thin once cured – only .0055" 
or less Leaves no residue on the track, and no gunk in your engine Universal - 
works for any loco from any manufacturer in any scale
TEMPERATURE WARNING
THIS PRODUCT FREEZES