This 3mm Clear Perspex Acrylic Sheet (Cast) measures 400mm x 300mm. The surface of the sheet has a high gloss finish. Clear Perspex sheets will allow light to pass through clearly, enabling objects to be distinguished through the material with virtually no colour bias.
High gloss surface.
Very high light transmission.
Easily laser cut, drilled and thermoformed.
Perspex is a thermoplastic which means that when it is heated above 140-180C it becomes flexible. This allows the material to be formed into the required shape or bent. Once the material cools below 85C it becomes rigid again.
Perspex sheets are often shaped using a CNC router or laser cutter. The edge of laser cut Perspex has a pleasing polished look. If you look carefully at the edge of a piece of laser cut Perspex you can often see slight vertical lines that are caused by the pulses a laser uses when cutting.
If you want to get a perfectly smooth finish on the edge of piece of machined Perspex a polishing technique can be used. Typical polishing techniques include diamond polishing and flame polishing.
It also possible to etch the surface of a Perspex sheet using a laser cutter. This can produce some very pleasing visual effects. The Perspex sheets have a protective film on both faces. If you are etching the material then this should be removed from the surface that is to be etched. If you are just laser cutting then this film can be left in place (if you wish) as it does not create any harmful gases when it is laser cut (unlike PVC).
1 x Clear Perspex Sheet (Cast) 3mm x 400mm x 300mm.
Perspex colour reference code
Thickness: 3mm (nominal).
The manufacturing tolerance for the thickness of cast Perspex acrylic sheets are the stated thickness +/-10% plus +/- 0.4mm. This means a 3mm Perspex sheet could be between 2.3mm and 3.7mm in thickness.