Working with acrylic paint has to be fast, as the paint dries in about 20 minutes. The advantage of time constraints is that brushwork is immediate; however, because of the nature of acrylic paint, over painting can easily cover changes. Because this paint is plastic, in all cases the paint needs to be mixed with acrylic gel/ either matte or glossy and may also be thinned down with water to be used as a glaze. Mixed with a heavy acrylic medium, the paint can appear to sit in the clear gel. This heavier gel also allows other materials to be added to the picture: grit, textiles, extra canvas pieces. This is what I mean in most cases when I refer to “mixed mediums”.