Yupo paper is a synthetic water-resistant paper. That means that when used with watercolor, your paint will dry only by evaporation.
yupo paper Spirit of Water Color
Rewards and Challenges of Painting on YUPO - American Watercolor
She Must Make Art : Watercolor Success on YUPO
Yupo Synthetic Watercolor & Art Paper Sheets & Rolls
burton silverman - Google Search
Musical Notes 3D on Yupo - BobbinsArtWork - Paintings & Prints
Comparative chart of textures on yupo paper with watercolors
Watercolor Landscape Studies in a Sketchbook - Belinda Del Pesco
Exploring new techniques on Yupo paper