This is great for any type of jobs for wiring and coating.  I used them for some knives i have for culinary school to ID mine from others I dipped the ends of the handles in and let them dry for about 15-20 mins and they settled nicely and started to dry immediately.  Its also much cheaper than the silicon dips for tools.  Only con is if you use the brush which is attached to the lid, it tends to clump do to the drying speed.  I used the red to letter over the white.