What is a cast?
Cast is the term used to describe a form made from poured liquid material. The liquid may be one of several materials such as plastic, plaster, acrylic, concrete or mixed media. Once the liquid is cool and completely firm, the cast is removed.Image © mint photograph/Shutterstock
Art that's created and executed in public locations outside the traditional contexts or art venues. It gained popularity during the 1980s during graffiti art boom. It has developed and continues to be applied into all subsequent incarnations. The common forms of this art include pop-up art, sticker art, stencil graffiti and sculpture or street installation among other forms. Sometimes, "guerrilla art", "neo graffiti", "post graffiti" and "urban art" are used in this context to refer to the created artwork.