TECHNICAL
PETG Family
A durable and versatile FDM thermoplastic family used for functional parts requiring good toughness, dimensional stability and resistance to moisture and common chemicals.
Material Overview
The PETG family covers glycol-modified PET-based FDM thermoplastics. PETG combines reliable processing with good toughness, layer adhesion and chemical resistance. Compared with standard PLA, PETG is generally less brittle and provides improved resistance to heat and demanding service conditions. It is commonly selected for functional housings, brackets, manufacturing aids and durable components. Final performance depends on the selected grade, part geometry, print orientation, environmental exposure and production parameters.
APPLICATION
Typical Part Types
Functional housings and protective covers
Brackets, mounts and machine accessories
Jigs, gauges and assembly aids
Guards, trays and components exposed to occasional moisture
Connectors, holders and durable mounting components
One-off parts and short production runs requiring improved toughness
Material Selection Note
PETG is suitable where greater toughness, chemical resistance and temperature resistance are required than standard PLA can normally provide. It is not a universal replacement for higher-temperature engineering thermoplastics. Gramm reviews the mechanical load, part orientation, operating temperature, chemical exposure, dimensional requirements and production conditions before manufacturing.