I took mine to a quilting friends house so we could both get a lot of cutting done. I put mine in the trunk for my 30 minute drive home on a hot day.......It is a wavy mess! I tried to flatten it with weights outside on a hot day...did not work! This was a big mat and now I have to replace it. I sure miss it. I am using a smaller one for now. Mine was the one to cover a large cutting table. Is there one that does not warp in the heat? Someone told me June Tailor's warranty their's not to warp. I guess we all need to check this out.
Connie