Does anyone know where I can get thermocromatic sheets?

Hi anyone know where i can purchase thermochromatic plastic sheets or thermo-sensitive liquid crystal sheets? Need feedback asap. Thanks.

Hi there thanks for the fast reply. Yeah I’ve contacted this company before but they only have thermochromatic inks/raw materials. They said they’ll send some samples anyway. Anywhere else i can get thermochromatic plastic sheets like polyurethene/vivak/pvc sheets - intending for model making, etc.