JAMG HE PETG Filament: High gloss & high toughness. Excellent impact resistanc and chemical resistance. Good stability, no cracking, no warping. Environmentally friendly, non-toxic and low odour. PETG Filament: Made from PETG plastic, which is known for its ease of use (like PLA) and durable strength (like ABS), provides light bed adhesion, high strength and a glossy finish.