Mirror Acrylic Sheet - 1/4" Thick. 6.0 mm, .220". Nominal size saw cuts. Mirror acrylic sheets are perfect for window replacements, signage, displays, aquarium covers, and many more DIY projects. Film masking top side. This is stronger than glass and weighs half the weight as glass. Acrylic mirror is resistant to shattering like regular glass when broken. However, this is still breakable, but wont break like normal glass. Mirror acrylic sheet is shatter resistant with extensive design flexibility. We can cut many different custom shapes, laser cutting and silk screening available.