was reading all the comments about repairing a cutting mat with interest---have olfa mats and they were were getting a bit rough--notice said 'getting' rough---past tense---thought about the part about soaking them in water---have no place to do that and keep it flat---took a spray bottle from bath & body works that had a real fine spray---wiped down that mat with a scotch brite pad and then sprayed the mat with a fine mist and wiped it off---not completely dry---left it a bit 'damp'---did that several times yesterday and today and it feels almost as smooth as new---worked for me---hope this works for someone else---worth a try anyway