Acrylics were first made commercially available in the 1950s. These were mineral spirit-based paints called Magna offered by Bocour Artist Colors. Water-based acrylic paints were subsequently sold as “latex” house paints, although acrylic dispersion uses no latex derived from a rubber tree. Interior “latex” house paints tend to be a combination of binder (sometimes acrylic, vinyl, pva and others), filler, pigment and water. Exterior “latex” house paints may also be a “co-polymer” blend, but the very best exterior water-based paints are 100% acrylic. Soon after the water-based acrylic binders were introduced as house paints, artists (the first of whom were Mexican muralists) and companies alike began to explore the potential of the new binders. Water soluble artist quality acrylic paints became commercially available in the early 1960s, offered by Liquitex.