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MG Chemicals PETG 3D printer filaments are manufactured under very strict quality controls to ensure consistant quality and a tight diameter tolerance accuracy. The new plastic spool is designed with a large hub to ensure a uniform winding of filament and cut outs on the sides to easily see how much filament is left. MG Chemicals PETG (Polyethylene terephthalate glycol-modified) 3D printer filaments are made from high purity pellets. PETG is a high strength transparent thermoplastic with excellent moisture and chemical resistance. This material does not require a heated print bed, is easy to use because of low shrinkage and excellent for applications where strong, transparent prints are desired. It offers printing speeds comparable to PLA and it is widely used in mechanical parts fabrication and robotics. Printing temperature 210 to 240 °C