Liquitex Iridescent Acrylic Pouring Medium can be used to prepare both ink and acrylics for acrylic pour painting. This medium has a high-gloss finish and is specially formulated to self-level to a smooth, craze-free finish.Iridescent Pouring medium has a subtle shimmer. It is a new innovation in acrylic pour painting and bridges the increasing popular pouring trend and the popularity of iridescent and metallic effects. This medium has the same working properties as regular Liquitex Pouring Medium, but with an iridescent shimmer. It's consistency is slightly thicker than regular pouring medium, but will easily produce pools, puddles, drips and other beautiful effects.