Acrylic is a popular choice for signage as it has the look of clear glass but is very lightweight and safe to use. It is stronger than glass and it won't shatter. Any marks or scratches are easily removed to maintain its great look. It comes in various thicknesses and colours, all of which will be outlined on the product page of for the sign or number you are looking at.
Plastic Republic Ltd. uses only the highest grade of acrylic, Plexiglas, to ensure that you receive a perfect house number sign every time. Plexiglas is UV stable so it will never fade and their manufacturing process is second to none. The protective film is removed to clean the sign thoroughly and to check that the quality has not been compromised in any way during the manufacturing process. The acrylic is laser cut to create crystal clear edges and is also flame polished to give an additional finer edge to ensure you are delighted with your sign from every angle.
The following is an extract from the Plexiglas website explaining why it is the best acrylic available for signage. Click here to read more.
Plexiglas G acrylic sheet products have a proven ability to withstand the effects of weather, sun, and a wide range of temperatures in outdoor use. This permanence derives from the acrylic resin's inherent stability. A large number of clear samples, after more than 10 years' outdoor exposure in Pennsylvania, show an average of more than 90% light transmission, which represents a loss of only 2%. Inspection reveals that very few test samples exhibit any obvious damage due to weathering. In other tests, samples of colourless Plexiglas sheet exposed outdoors in Arizona, Florida, and Pennsylvania for 20 years or more show no significant discoloration, crazing, surface dulling, loss of light transmission, or development of have or turbidity. In these tests the samples were mounted on outdoor racks at a 45-degree angle facing south. Angling the racks in this manner increases the rigors of exposure significantly. Actual outdoor applications ordinarily involve less severe conditions.