3D Printing in PETG

PETG is a widely used and appreciated 3D printing material. Compared to PLA and ABS, it stands out for its temperature resistance, being stronger than PLA but less than ABS. It begins to soften at 80ºC, while PLA softens at 70ºC and ABS at 105ºC.

In terms of strength, PETG is the most durable, being difficult to break due to better layer adhesion. Although it is less rigid than PLA and ABS, the difference with ABS is minimal. It is also important to highlight that PETG has FDA approval for food contact and is highly resistant to acidic and basic chemicals.

Advantages of PETG

When is the perfect material choice?
Excellent for shape and fit prototyping
Some flexibility under tension, it will bend instead of breaking
Medium resistance to impacts and chemicals
Prototyping of parts that may be under load or forces
Basic shapes with minimal intricate features
Printing times from the next working day!

Disadvantages of PETG

When to look for other material options
Requires supports and may affect the visual quality of the part
The surface finish can sometimes be worse than that of PLA
It can sometimes have a fibrous surface texture
It is not suitable for painting or varnishing
It is not good for capturing small details
Sanding or painting it requires more post-processing time than resin or ABS

Available Colors

Black
Pantone
Black
White
Pantone
White
Blue
Pantone
7689C
Red
Pantone
485C

Technology used

FDM, or fused deposition modeling, is a manufacturing process used for prototyping and the production of small to medium runs. This modeling uses an additive function, depositing the material in layers to shape the part.

A filament is used that is initially stored in rolls, and is fed into a nozzle that is above the melting temperature of the material and can move in three axes controlled electronically. The nozzle moves to deposit the material in the correct location, drawing the model line by line. Once a layer is drawn, the base lowers by a layer thickness (0.1-0.4) so that the printer can continue with the next layer.

When the model to be printed has sections that protrude or have a steep angle, a support structure is created where necessary and is printed in a material that can later be easily removed, in some cases soluble. This is done to ensure that the model does not hang in the air, thus preventing the layer from falling.

Technical specifications

Property Value Test Method
Density 1,12 g/cm^3 ISO 1183-1-A
Tensile Strength 45 MPa DIN 53504-S2
Flexural Strength 70 MPa ISO 178
Tensile Strength 50 MPa ISO 527
Elongation 54 % ISO 527
Softening Temperature 85 ºC ASTM D3418

Data Sheet

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