Acrylic is a thermoplastic that is naturally transparent but can also be colored. It can refer to any material that contains acrylic acid or acrylates. Acrylic is often used as a shatterproof glass replacement due to its optical clarity and strength. It is brittle and will crack rather than bend. Acrylic is known by different trade. It is sold as cast or extruded acrylic sheets. Various additives can also be added to acrylic to improve various properties such as UV resistance, electrostatic dissipation, and abrasion resistance.