What do you use to smooth the edges of a plastic acrylic?

Hey

All you need to do is use some waterproof abrasive paper (also know as wet and dry paper) and in essence sand down the edges equally to get a nice finish.

now the technique to the best finish is to use the wet and dry paper on the edges when it is dry until the edge feels smooth but maybe has a few more scratches you can't feel much but can see. Once you've done that, get the paper wet and repeat the sanding movements till the edge is very smooth. If you have a buffing or polishing machine you can use that on the edges too but look up the safety online as I'm not very well acquainted with the machine.

Sincerely

James