Glass Transition Temperature (Tg) Explained: Why It Matters for Injection Molded Plastics
How Tg defines the upper thermal limit of injection molded plastics — and why it matters for material selection, mold design, and part performance. Glass transition temperature (Tg) is the temperature at which an amorphous thermoplastic transitions from a hard, glassy state to a soft, rubbery one. Below Tg, the polymer chains are locked in […]