Fletcher's 3000 and 3100 will score and break flat fracture sensitive plastics such as acrylics. Polycarbonates are not fracture sensitive and do not readily break from bending. It is not necessary to remove the protective coating prior to scoring.
For plastics up to 1/8" (3mm) thick, one scoring pass with a new blade is normally enough. If the plastic is 1/4" thick (6mm), it is recommended to repeat the scoring three to four times.
Both the 3000 and 3100 are equipped with a break-out feature easily completing the job.