Producing a Frosty White Engraving on Acrylic
There are two types of acrylics that are typically used in laser engraving, but one is more suitable for producing this effect
More than likely, when your engraving doesn’t produce a frosty white effect, this is caused by using the wrong acrylic in the application.
Cast acrylic sheets and objects are made from a liquid acrylic that is poured into molds that can then be set into various shapes and sizes. This type of acrylic is ideal for engraving because it turns a frosty white color when engraved, making it suitable for awards and plaques. It can be cut with a laser, but it won’t give projects flame-polished edges.
The other type of acrylic used in laser engraving is called extruded acrylic, which is formed into sheets by a machine. Extruded acrylic is generally less expensive than cast acrylic because it is formed through a higher-volume manufacturing technique. However, it does react differently with the laser engraving machine. This type of acrylic cuts cleanly and smoothly and produces a flame-polished edge; however, when engraved, it doesn’t produce that frosted look, but rather a clear engraving. Make sure you are using cast acrylic if you want a frosted white finish.
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