Playing with encaustics a few years ago I saw how neat wax can be and also how messy and fumy...so when cold wax was offered as an alternative... I was interested!!! You just mix in a dab of oil paint and slater it on your paper or canvas with a palette knife...the blues in both of these examples are oil with wax. It takes some time to dry but is also good plain for sticking down a thin layer of paper or yarn. I will have to continue to play around to see how I will use it in my paintings.