Introduction
Printing 3D models have never been easier and more affordable than it is now. Thanks to the advancements in technology, it is now possible to print high-quality models using thermoplastic filaments such as PLA and PETG. The question is, which one is better when it comes to durability?
In this blog post, we will provide an unbiased comparison of PLA and PETG filaments in terms of durability. We will dive deep into the numbers and compare their tensile strength, impact resistance, and other critical factors. So, buckle up, and let's get started!
PLA vs PETG: Tensile Strength
Tensile strength is the maximum amount of force a filament can withstand before breaking or cracking. It is an essential factor to consider when printing 3D models that require structural integrity. In terms of tensile strength, PETG is the clear winner.
According to research, PETG has a tensile strength of 6,600 PSI, while PLA has a tensile strength of 4,000 PSI. This means that PETG is 65% stronger than PLA.
PLA vs PETG: Impact Resistance
Impact resistance is the ability of a filament to withstand sudden force or impact without breaking or cracking. If you're printing models that require high impact resistance, PETG is the better choice.
PETG has an impact resistance of 8.5 J/m, while PLA has an impact resistance of 3.5 J/m. This means that PETG is 2.4 times more impact-resistant than PLA.
PLA vs PETG: Heat Resistance
Heat resistance is how well a filament can withstand high temperatures without deforming or losing its shape. Both PLA and PETG have different heat resistance levels.
PLA has a heat resistance of around 50°C, which means that it is not suitable for high-temperature environments. On the other hand, PETG has a heat resistance of around 80°C, which makes it suitable for applications that require high-temperature resistance.
Conclusion
In conclusion, both PLA and PETG have their strengths and weaknesses. While PLA is affordable and easy to print, PETG is the better choice when it comes to durability. PETG has a significantly higher tensile strength, impact resistance, and heat resistance than PLA.
When choosing between PLA and PETG, it's important to consider the specific requirements of your project or application. If durability is a priority, PETG is the way to go. However, if you're printing models that don't require high durability, PLA is a great and affordable option.
We hope you found this comparison helpful in deciding which filament to use for your next 3D printing project.