kestoplastiset
Kestoplastiset is a term of Finnish origin that translates to "thermoplastics" in English. Thermoplastics are a class of polymers that become pliable or moldable above a specific temperature and retain a plastic and pliable state at room temperature. This characteristic distinguishes them from thermosetting polymers, which undergo irreversible curing and become permanently rigid.
The key property of thermoplastics is their ability to be repeatedly softened by heating and then hardened
Common examples of thermoplastics include polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS), and polyethylene