EDIT TO ADD:
Per the SDS provided by the manufacturer, Sabic/Plaskolite Lexan XL appears to be safe for use in a laser cutter. (If you can get a good cut is still TBD.)
Link to SDS, also posted below
See below for a photo of what appears to be the best appearance you can get from cutting polycarbonate–smooth cuts, but brown edges.
For a part I want to make, I need something tougher than acrylic. Lexan/polycarbonate and PET-G are used for these kinds of products when you buy them. Since Home Depot carries Lexan, I picked up a sheet of 11"x14"x.093".
Upon further reading I have seen claims that some polycarbonate formulations contain chlorine. I wanted to start a thread to identify safe products and discuss cut settings. I know polycarbonate is not supposed to be the best material for laser cutters, but I have seen many claims that it can be cut successfully, so I want to try if it’s safe for the machine.
Here’s the label on the Home Depot 11"x14" Lexan:
I believe this is Sabic/Plaskolite part number 1PC1114A. I also see this product referred to generically as XL10 Lexan, which is listed on Sabic’s page of UV-coated Lexan products.
Sadly, no documents are available from Sabic! I used their contact form to ask for the SDS. In the meantime, does anyone have laser-safe polycarbonate sources or cutting tips to share?
tl;dr I wish PET-G was easier to find locally!