Vinyl Paint Masking

in the middle of a cut, using a 16th endmill to clear around the design.
I painted the board first.
shellacked it
then covered with oracale631vinyl mask.
every few seconds its accumulating on the bit and basically renders the bit useless. Does anyone have anything or any tips I can do to actually be able to continue the project: 1. without ending it and starting over. 2. so I’m not wiping the bit off, every second, for the next 4 hours? well, that 4 hours would increase if I have to continue like I have???