Interactive material comparison

Compare 3D Printing Materials

Compare setup and family characteristics, then use a dedicated pair guide for the requirements and tradeoffs that determine your part.

First material Second material

PLA and PETG

Property	PLA	PETG
Difficulty	easy	moderate
Reason to investigate	visual prototypes, display models, dimensionally tidy indoor parts	everyday functional parts, light moisture exposure, moderate impact
Preparation	Choose a build surface supported by your printer and PLA profile. Prusa notes that its smooth PEI sheet is useful for small contact areas; that is specific equipment guidance, not a setting for every printer.	Check the release instructions for the exact build plate. Prusa cautions that PETG can bond too strongly to smooth PEI; use the surface and separation method specified for your equipment.
Decision to resolve	Is the prototype only for fit, or will it remain in service?	Will supports be accessible after printing?
Poor fit	hot environments, parts needing sustained flexibility	very rigid precision features, high heat

PLA guide · PETG guide

Read the curated decision for this pair

Published product examples, separate from the family view

These are identified formulations chosen to show how to read evidence. Selecting a family does not select a brand for your part.

Prusament PLA / PLA Blend evidence · Prusament PETG evidence

Compare reported properties and conditions, without an overall winner
Property	Prusament PLA / PLA Blend	Prusament PETG	Comparison scope
Density	1.24 g/cm³ Prusa Polymers, v1.1 Source conditions Method: ISO 1183; load: not specified; specimen: not specified; orientation: not specified; conditioning: not specified; test temperature: not specified. p. 2, typical properties. Checked 2026-10-29.	1.27 g/cm³ Prusa Polymers, v1.1 Source conditions Method: ISO 1183; load: not specified; specimen: not specified; orientation: not specified; conditioning: not specified; test temperature: not specified. p. 2, typical properties. Checked 2026-10-29.	Separate published values Different or unspecified specimen, conditioning, test temperature. Read each source separately; these values do not establish which material performs better in your part.
Heat deflection temperature	55 °C Prusa Polymers, v1.1 Source conditions Method: ISO 75; load: 1.80 MPa; specimen: not specified; orientation: not specified; conditioning: not specified; test temperature: not specified. p. 2, typical properties. Checked 2026-10-29.	68 °C Prusa Polymers, v1.1 Source conditions Method: ISO 75; load: 1.80 MPa; specimen: not specified; orientation: not specified; conditioning: not specified; test temperature: not specified. p. 2, typical properties. Checked 2026-10-29.	Separate published values Different or unspecified specimen, orientation, conditioning, test temperature. Read each source separately; these values do not establish which material performs better in your part.
Tensile modulus	2.3 ± 0.1 GPa Prusa Polymers, v1.1 Source conditions Method: ISO 527-1; load: not specified; specimen: MK3; Slic3r Prusa Edition 1.40.0; 0.20 mm FAST; 100% rectilinear infill; 2 perimeters; no top/bottom; 215 °C nozzle; 60 °C bed; orientation: Horizontal; conditioning: not specified; test temperature: not specified. p. 2, printed-specimen table; p. 3, footnote setup. Checked 2026-10-29.	1.5 ± 0.1 GPa Prusa Polymers, v1.1 Source conditions Method: ISO 527-1; load: not specified; specimen: MK3; Slic3r Prusa Edition 1.40.0; 0.20 mm FAST; 100% rectilinear infill; 2 perimeters; no top/bottom; 250 °C nozzle; 80 °C bed; orientation: Horizontal; conditioning: not specified; test temperature: not specified. p. 2, printed-specimen table; p. 3, footnote setup. Checked 2026-10-29.	Separate published values Different or unspecified specimen, conditioning, test temperature. Read each source separately; these values do not establish which material performs better in your part.

HDT is a loaded deflection test, not a continuous service limit. Modulus measures stiffness; it is not impact strength. Shore A and D remain different scales.

Compare the requirement, then the family

Select two families to inspect their setup expectations. The numerical bands are editorial candidate-ordering aids, not tested temperatures, loads or universal performance scores. For a 40 mm locating plate versus a flexible bumper, rigidity and loaded deformation answer different questions: compare PLA/TPU rather than treating a higher band as better overall.

For heat, moisture, chemical or outdoor use, obtain the exact formulation datasheet and actual exposure conditions. This comparison runs locally and does not upload a model. Read the rigid-versus-flexible decision or review an outdoor cover.