I've been playing around in the material room trying to come up with a decent wet effect. I'm not actually happy with this render but believe the effect is just close to what I was trying to achive. Thanks to Nance, Kiera, and others, for tips that pointed me in this direction. In the end, it actually turned out to be rather simple. - Add noise to gradient bump, set to 0.1 to 0.15 - Specular color to grey (RGB = 115, 115, 115)