Materials that become soft when heated and solid when cooled to room temperature. This softening and setting may be repeated many times. Found on http://www.blowmachines.com/glossary1.htm
Resins or plastic compounds in the form of small beads which, in their final state as formed plastic products, are capable of being repeatedly softened by an increase of temperature and hardened by a decrease of temperature. Found on https://www.dwplastics.co.uk/glossary/
Resins or plastic compounds which, in their final state as finished articles, are capable of being repeatedly softened by an increase of temperature and hardened by a decrease of temperature. Found on https://www.encyclo.co.uk/local/23693