Glass Wet Rain Animated 1
That's Right an animated Material! Comes with seamless, repeating, looped animations for the bump mapping and specular mapping in 1024 x 1024.
You can use this for any material that needs to have dripping water.
dripping paint down a wall-- check
dripping blood down... whatever -- check
rain running down the side of a building-- check
Your character covered in slimey ooze -- double check.