It is, indeed, possible to slice through your cutting mat. Ask me how I know... go on, ask me. Because I managed to do just that! Apparently I frequently use the 10 inch line as my cutting line. Last week one day I sliced right through that 10 inch line. For the record my cutting mat was about 10 years old & had seen lots of wear. But still, this little event caught me off guard!
It was a good excuse to dig out a 50% off Joanns coupon and go on a field trip. Don't you worry, I'm all set now.