FilamentIQ
3D Printing Filament Guide

PLA vs PETG vs ABS

An at-a-glance breakdown of strength, heat resistance, print difficulty, cost, and real-world use cases — so you pick the right material, every time.

PLA PETG ABS

Quick Comparison

Tensile Strength

PLA
50–60 MPa
PETG
40–50 MPa
ABS
34–36 MPa

PLA wins raw tensile strength, but is brittle under impact.

Heat Resistance

PLA
~55°C
PETG
~70°C
ABS
~98°C

ABS dominates. PLA warps in a hot car — avoid for outdoor/under-hood parts.

Print Difficulty

PLA
Easy
PETG
Moderate
ABS
Hard

ABS warps aggressively — needs enclosure, high bed temp, and no drafts.

Cost per Kilogram

PLA
$15–$30
PETG
$20–$40
ABS
$20–$55

PLA is the most affordable. Budget brands like Elegoo start around $15/kg.

Overall Profile

Multi-axis performance comparison across six key properties. Higher = better in that dimension.

PLA
PETG
ABS

Tensile Strength vs Heat Resistance

Side-by-side view of the two most commonly misunderstood tradeoffs.

Print Settings Reference

Recommended starting points for your Bambu or any FDM printer.

Setting PLA PETG ABS
Nozzle Temp 190–220°C 230–250°C 220–260°C
Bed Temp 25–60°C 70–85°C 100–110°C
Heated Bed Required No (recommended) Yes Yes
Enclosure Not needed Helpful Required
Part Cooling Fan Full blast 50–80% Off or <30%
Warping Risk Low Moderate High
Fumes / VOCs Minimal Low Significant
Stringing Tendency Low Moderate–High Low–Moderate
Layer Adhesion Medium Excellent Good

Best & Worst Use Cases

Where each material thrives — and where it'll let you down.

PLA Beginner's champion

Best For

  • Decorative prints & figurines
  • Rapid prototyping
  • Educational models
  • Cosplay props & costume parts
  • Organizers & desk accessories
  • Cookie cutters & food-safe molds
  • RC car bodies (non-structural)

Avoid For

  • Car interiors / hot gloveboxes
  • Outdoor parts in direct sun
  • Load-bearing mechanical parts
  • Anything that flexes repeatedly
Biodegradable, easy to sand/paint, zero hassle. If it won't see heat or stress, default to PLA.
PETG The versatile workhorse

Best For

  • Mechanical & functional parts
  • Outdoor fixtures & brackets
  • Water-resistant enclosures
  • Phone cases & protective gear
  • Home automation mounts
  • Drone frames & RC parts
  • Food-contact containers (food-safe grades)

Avoid For

  • High-detail miniatures (strings badly)
  • Under-hood automotive parts
  • Extreme heat applications (>70°C)
  • Tight tolerance fits (tends to flex)
Your best everyday functional filament. Excellent for HA sensor mounts, garden hardware, and anything that might get bumped.
ABS The engineering-grade veteran

Best For

  • Automotive & under-hood parts
  • Electronics enclosures
  • LEGO-style interlocking parts
  • Tooling & jigs
  • Parts exposed to sustained heat
  • Acetone-smoothed finished parts

Avoid For

  • First prints / no enclosure setup
  • Unventilated spaces (VOCs)
  • UV/outdoor long-term exposure
  • Flexible parts (cracks under bend)
Requires setup discipline — enclosed printer, good ventilation. When heat resistance matters and PETG isn't enough, ABS delivers.

Which Should You Use?

Follow the decision tree to find your material fast.

Will it be exposed to heat (>55°C)?
No
Does it need to be tough / outdoor-durable?
No
✓ Use PLA — fastest, cheapest, easiest
Yes
✓ Use PETG — tougher, weather-resistant
Yes
Will it exceed 70°C regularly?
No
✓ Use PETG — handles up to ~70°C
Yes
✓ Use ABS — rated to ~98°C