Our supply: Stock / special order material
Thickness: Available in 3mm, 5mm and 6mm
Sheet sizes: 2400×1200mm, 1200×1200mm, 1200×600mm, 600×600mm 600×300mm.
Your supply: If preferred, you can also supply your own acrylic any sheet size up to 3000×2000mm.
A clear thermoplastic with a reflective backing on one side. Silver Mirror Acrylic has a grey or white finish on the back and a clear glossy finish on the front. This reflective coating creates the silver mirror look through effect. Hard, stiff and sensitive to stress concentrations. This is most evident if parts are small or thin.
Mirror Acrylic sheet is supplied with a protective plastic film on the glossy side. When only laser cutting is required, we cut with the reflective side up leaving the plastic film on. We also apply protective paper backing to the reverse side. This helps to reduce heat marks and protects the surface from scratches.
As a benchmark, we recommend that minimum cut widths be no smaller than the corresponding thickness of the material. For example, if cutting from 3mm acrylic, its best not to allow anything less than 3mm in width. We can go smaller (see cut width image above) but this can make your components quite fragile which might not be suitable for your application. See more on cut widths and Kerf.
Acrylic laser cuts with a highly polished edge. We achieve this using a high laser frequency (ppi. pulses per inch ) that melts the edges as it cuts. If you look closely at the edge it is not entirely smooth and is made up of lots of tiny vertical lines. This is caused by the pulses of the laser which is more evident on thicker acrylic.
We have established optimised engraving settings for all our supply materials. For acrylic the marking is a shallow cosmetic light surface scratching. All cast acrylic engraves with a milky white finish.
If you just require vector engraving / scoring and cutting, we leave the protective film on both sides and engrave through the top layer of film into the acrylic surface. This helps to protect the top and bottom surface from heat marks from cutting.
We have established optimised engraving settings for all our supply materials. On all mirrored acrylic the engraving is carried from the reverse / non reflective side. Prior to this (if you have not done this already) we will “mirror” (reverse) your artwork so that it remains the right way round when viewed from the reflective side. The engraving setting is optimised to remove the reflective coating from the reverse producing a look through effect on the mirror side. We keep the protective film on the reflective side to protect the surface from markings when cutting is also required.