Question: how to cut uhmw sheet?
Answer: Use a tape measure and mark the cut location with a pencil if the UHMW is a light color. ... 
Install a 12- to 14-inch diameter carbide-tipped blade with 24 teeth into a table-mounted circular saw. ... 
Place the piece of UHMW onto the work surface and align the pencil or chalk line in front of the circular saw blade.