Acrylic plastics are known for their attractive, glossy surfaces, in almost any color. Acrylic is a useful, clear plastic that resembles glass, but has properties that make it superior to glass in many ways. It is used to make various products, such as shower doors, bath enclosures, windows and skylights. It is chosen over glass for many reasons. It is many times stronger than glass, making it much more impact resistant and therefore safer. Another great advantage of acrylic is that it is only half as heavy as glass. This makes working with acrylic much easier. Adding to this favorable array of properties, a transparency rate of 93% makes acrylic the clearest material known. There are some misconceptions about acrylic, namely that it yellows, turns brittle and cracks over time. If taken care of, acrylic remains new looking regardless of age or exposure to sun. Some people worry that acrylic scratches too easily, but unlike glass, scratches can be easily buffed out of acrylic.