Acrylic is a type of plastic material that is known for its transparency, lightweight and durability. It can be molded when heated or extruded into pellets, which are then used to create various products such as acrylic paints, adhesives, coatings, and fibers. Acrylics are also commonly used in the making of signs, displays, and other forms of visual communication due to their ability to be easily shaped, colored, and polished.