PETG
Glycol-Modified PET
Glass Transition (Tg)
80–85 °C
Melting Point (Tm)
— (amorphous)
Density
1.27 g/cm³
CAS Number
25640-14-6
Recycling Code
♺ 1
Category
Commodity
Repeat Unit
PET + CHDM comonomer
The repeating unit is the smallest structural fragment whose repetition builds the whole chain. Subscripts show the relative share of each unit in copolymers.
Key Properties
CHDM comonomer suppresses crystallisation, giving a fully amorphous, glass-clear, easily thermoformed material with good impact strength.
Applications
3D-printing filament, medical packaging, point-of-sale displays, shields.