Do you need to look wet or slimey for a costume or photoshoot?
Then you need “Wire Pulling Lubricant:”
It is a clear, odorless, environmentally safe, non-toxic, non-flammable, non-corrosive, polymer based lubricant used for electrical and datacom cable applications. It is place on cables or in piping to allow the cables to be be easily pulled through over long distances. And since it is designed for electrical and datacom situations, it is designed to dry/evaporate with no residue!
I most often use it on my Ghostbuster costume to achieve a “Slimed” look. So, here we go:
The initial application:
After two hours:
After three hours:
In an outdoor setting, or a convention where you are walking around, it will actually evaporate faster. It is also safe for use on skin and hair, if your character needs to look wet or sweaty, and you can buy Wire Pulling Lubricant in the electrical section for relatively cheap in any major hardware store like Lowes or Home Depot.