PLA vs PETG vs ABS: Which Filament Should You Use?

Choosing the right filament is one of the most important decisions you'll make as a 3D printing enthusiast. PLA, PETG, and ABS are the three most popular materials — but they each have very different strengths, weaknesses, and ideal use cases. This guide breaks it all down so you can print with confidence.

Quick Comparison Table

PLA: The Beginner's Best Friend

PLA (Polylactic Acid) is the most widely used 3D printing filament for good reason — it's easy to print, produces great detail, and comes in a huge range of colours. It's made from renewable resources like corn starch, making it more eco-friendly than petroleum-based plastics.

PLA Pros

• Prints at low temperatures (190–220°C) — no heated bed required
• Minimal warping — great for large flat prints
• Excellent detail and surface finish
• Wide colour selection including specialty variants
• Biodegradable under industrial composting conditions

PLA Cons

• Low heat resistance — can deform in a hot car (~60°C)
• Brittle under impact — not ideal for load-bearing parts
• Absorbs moisture over time if not stored properly

Best PLA Products

For everyday printing, eSUN PLA+ is a step up from standard PLA — it's tougher, less brittle, and still just as easy to print. If you're running a high-speed printer like a Bambu Lab or a tuned Voron, check out eSUN PLA+ HS High Speed PLA which is engineered for print speeds over 150mm/s without sacrificing quality.

PETG: The Versatile All-Rounder

PETG (Polyethylene Terephthalate Glycol) sits in the sweet spot between PLA and ABS. It's stronger and more heat-resistant than PLA, but far easier to print than ABS. If you're printing functional parts that need to last, PETG is often the best choice.

PETG Pros

• Excellent layer adhesion — very strong prints
• Good chemical resistance (great for food-contact or outdoor use)
• Handles temperatures up to ~80°C
• Low warping — prints reliably without an enclosure
• Slightly flexible — resists cracking under impact

PETG Cons

• Can be stringy — requires tuning retraction settings
• Sticks aggressively to glass beds — use a release agent
• Slightly lower detail than PLA due to higher printing temps

Best PETG Products

Our most popular option is eSUN PETG+, which offers improved toughness over standard PETG. For high-speed printers, eSUN PETG+HS High Speed lets you push speeds without stringing or quality loss. We also stock eSUN PETG in 2.5kg spools for high-volume printing.

ABS: The Engineering Workhorse

ABS (Acrylonitrile Butadiene Styrene) is the material of choice for engineering applications, automotive parts, and anything that needs to withstand heat or mechanical stress. It's the same material used in LEGO bricks. However, it's significantly harder to print than PLA or PETG.

ABS Pros

• High heat resistance — handles up to ~100°C
• Excellent impact resistance and toughness
• Can be post-processed with acetone for a smooth finish
• Good for machining, drilling, and tapping

ABS Cons

• Warps significantly — requires an enclosure and heated bed (90–110°C)
• Emits strong fumes — always print in a ventilated area
• Requires higher nozzle temps (220–250°C)
• More sensitive to drafts and temperature changes

Best ABS Products

eSUN ABS+ is our recommended ABS variant — it adds improved impact resistance and reduced warping compared to standard ABS, making it much more manageable to print. For high-volume users, eSUN ABS+ in 2.5kg offers great value.

Which Filament Should You Choose?

Here's a simple decision guide:

• Just starting out or printing display models? → Go with PLA or PLA+. It's forgiving, affordable, and produces beautiful results.
• Printing functional parts, brackets, or outdoor items? → Choose PETG. It's strong, chemical-resistant, and easy enough for most printers.
• Need heat resistance or engineering-grade strength? → Use ABS+. Just make sure you have an enclosure and good ventilation.
• Running a high-speed printer? → Look at PLA-HS or PETG+HS — engineered specifically for speeds above 150mm/s.

A Note on Moisture

All three filaments absorb moisture from the air, which causes bubbling, stringing, and weak prints. Store your filament in sealed bags or airtight containers with desiccant when not in use. If your filament has been exposed to humidity, dry it in a food dehydrator or filament dryer before printing.

Have questions about which filament is right for your project? Get in touch with our team — we're happy to help.