PCTG (Polyethylene Terephthalate-Glycol) is a durable 3D printing filament similar to PETG but with enhanced toughness and impact resistance. It offers excellent clarity, chemical resistance, and ease of printing, making it ideal for strong, transparent, and functional parts. PCTG is less prone to warping and provides reliable layer adhesion, ensuring smooth, high-quality prints. It's a versatile material suited for both functional prototypes and consumer products requiring a balance of strength and flexibility.