PETG has become one of the most popular 3D printing materials for users who need a balance of toughness, durability, chemical resistance, and ease of printing. Now, eSUN is taking its PETG lineup a step further with PETG+.

As eSUN transitions from its standard PETG filament to the new PETG+ formulation, users can expect an updated material designed to provide a more refined printing experience and improved performance.

In this guide, we'll look at what PETG+ is, what's changing, and why it may be worth switching to the new formulation.

What Is eSUN PETG+?

eSUN PETG+ is an updated PETG formulation developed to improve the overall printing experience while maintaining the qualities that make PETG popular.

PETG is already known for being:

• Tough and durable
• Water resistant
• Chemically resistant
• Relatively easy to print
• Suitable for functional parts and prototypes

eSUN's PETG+ builds on this material platform with a focus on improved printability and performance.

eSUN's current PETG+HS formulation, for example, uses an optimized PETG formula designed for faster cooling and solidification, while also addressing material adhesion to the nozzle during printing.

Why Is eSUN Transitioning from PETG to PETG+?

Material formulations are continually being improved as 3D printers become faster and more capable.

Modern desktop printers can print PETG at substantially higher speeds than earlier generations. This creates new challenges for filament manufacturers, including:

• Maintaining consistent extrusion
• Improving cooling and solidification
• Reducing nozzle adhesion
• Maintaining good layer bonding
• Producing reliable prints at higher speeds

eSUN has been developing optimized PETG formulations to address these demands. Its PETG+HS material, for example, is specifically described as being optimized for faster cooling and high-speed printing.

The move toward PETG+ reflects the broader evolution of PETG for modern high-speed 3D printers.

PETG vs PETG+: What's Changing?

The most important thing to understand is that PETG+ isn't a completely different material category.

Instead, it represents an evolution of PETG.

The exact properties depend on the specific PETG+ product and its formulation, so users should always follow the specifications and recommended settings for the particular spool.

1. Improved Printability

One of the biggest reasons to move to an updated PETG formulation is easier, more consistent printing.

Traditional PETG can sometimes be more challenging than PLA because of issues such as:

• Stringing
• Nozzle buildup
• Oozing
• Excessive adhesion
• Surface imperfections

eSUN's optimized PETG+ formulations are designed to address some of these printing challenges. Its PETG+HS description specifically notes optimization of material adhesion to the nozzle to reduce the likelihood of poor printing.

For users running modern automated printers, this can mean a smoother overall experience.

2. Designed for Today's Faster 3D Printers

Modern printers such as Bambu Lab, Creality, and other high-speed machines have changed what users expect from filament.

Instead of printing at traditional PETG speeds, today's printers can push materials much faster.

eSUN's PETG+HS is listed with a recommended printing range of 40–300 mm/s, depending on the printer and print conditions.

This makes optimized PETG formulations particularly interesting for:

• High-speed prototyping
• Batch production
• Functional parts
• Large prints
• Automated printing workflows

3. Retains PETG's Toughness

PETG remains popular because it offers a useful balance between ease of printing and mechanical performance.

eSUN describes its PETG materials as offering high toughness, along with water and chemical resistance.

This makes PETG+ a practical choice for parts that need more durability than typical PLA applications.

Common examples include:

• Brackets
• Enclosures
• Snap-fit components
• Prototypes
• Mechanical parts
• Containers
• Functional accessories

4. Water and Chemical Resistance

Another major advantage of PETG is its resistance to moisture and many common chemicals.

eSUN lists water resistance and chemical resistance among the key characteristics of its PETG materials.

This makes PETG+ useful for applications where PLA may not be the first choice.

For example:

Outdoor and utility parts

PETG can be useful for components exposed to moisture.

Workshop components

Its chemical resistance makes it suitable for certain functional workshop applications.

Containers and organizers

PETG can provide a durable alternative for many everyday functional prints.

5. Excellent for Functional 3D Printing

PETG+ is particularly well suited to functional 3D printing.

Rather than using PETG only for decorative models, you can use it for parts designed to perform a specific job.

Examples include:

• Tool holders
• Mounting brackets
• Cable management parts
• Protective covers
• Machine components
• Prototypes
• Snap-fit assemblies

eSUN specifically lists snap-fit components, waterproof applications, flower pots, and prototyping among PETG+HS applications.

6. A Great Material for Prototyping

For product designers and engineers, PETG+ can be a useful prototyping material.

It provides a combination of:

Easy printing + toughness + durability + chemical resistance

That makes it suitable for testing the size, fit, and functionality of a product before moving to more specialized materials or manufacturing methods.

For example, you can use PETG+ to test:

• Housing designs
• Mechanical assemblies
• Snap-fit connections
• Mounting systems
• Product concepts

7. Better Suited to Modern Printing Workflows

Another benefit of updated filament formulations is compatibility with the way people print today.

Automatic calibration, high-speed printing, multi-color systems, and remote printing have become increasingly common.

A filament that performs consistently at higher speeds can help users take better advantage of these modern workflows.

eSUN's PETG+HS documentation specifically highlights compatibility with high-speed printing.

Do You Need to Change Your Printer Settings?

Not necessarily.

Because PETG+ is still part of the PETG family, your existing PETG workflow may provide a useful starting point.

However, don't assume that the exact same temperature and speed settings will always be optimal.

For best results:

1. Start with the manufacturer's recommended settings.
2. Check the filament's product documentation.
3. Calibrate temperature if necessary.
4. Test flow and retraction.
5. Adjust speed according to your printer.

For eSUN PETG materials, the manufacturer recommends drying the filament before printing when necessary and provides specific temperature and speed recommendations for its products.

Is PETG+ Better Than Standard PETG?

For users buying new filament, PETG+ is the direction to look toward as eSUN transitions its PETG lineup.

The advantage isn't that traditional PETG suddenly becomes unusable. Rather, PETG+ represents a newer formulation intended to better match modern printing requirements.

If you're already happy with standard PETG, you don't necessarily need to replace your existing spools immediately.

But when it's time to purchase your next spool, the new PETG+ formulation offers an opportunity to move to the updated material.

What Can You Print with eSUN PETG+?

PETG+ is versatile enough for a wide range of projects.

🛠 Functional Parts

Brackets, mounts, organizers, and mechanical components.

🏭 Prototypes

Product development and design validation.

💧 Waterproof Applications

Containers, plant pots, and components exposed to moisture.

🔧 Workshop Accessories

Tool holders, storage solutions, and custom fixtures.

🧩 Snap-Fit Parts

Components requiring toughness and reliable layer bonding.

🏠 Everyday Objects

Household organizers, accessories, and replacement parts.

Final Thoughts: Welcome to the Next Generation of PETG

The transition from standard PETG to eSUN PETG+ represents the continued evolution of one of the most useful 3D printing materials.

PETG already offers an excellent combination of toughness, water resistance, chemical resistance, and printability. The newer PETG+ approach is designed to make those benefits work better with today's faster 3D printers and more demanding workflows.

For makers, engineers, and businesses looking for a reliable material for functional parts and prototypes, PETG+ is a natural next step from traditional PETG.

As eSUN transitions its PETG lineup, it's a good time to get familiar with the new formulation and start taking advantage of what the updated material has to offer.