The Complete 3D Printing Material Guide (21 Filaments Compared)

Picking the wrong filament is the most avoidable way to ruin a print. A part that's too brittle, too soft, or that warps apart in the sun usually isn't a printing mistake — it's a material mistake made before the print ever started. This guide breaks down 21 filaments by what they're actually good for, so you can pick once and get it right.

Start Here: Questions to Ask Before You Pick

• Will it be indoors or outdoors?
• Does it need to withstand heat?
• Does it need flexibility or rigidity?
• Will it see repeated impacts or wear?
• Is appearance or strength the priority?
• Does it need to look or feel like a specific material — wood, rubber, metal-like stiffness?
• How fast do you need it printed?

Quick Comparison: PLA, PETG, ABS & ASA Families

If you're still deciding between the big three, we cover this in more depth in our PLA vs PETG vs ABS guide.

Quick Comparison: Nylon, TPU & Engineering Materials

Star ratings are relative comparisons across this guide, not lab measurements — always check a specific manufacturer's technical data sheet for exact figures. For a deeper dive into the industrial-grade options here, see our Engineering Filaments guide.

The PLA Family

PLA (Standard)

Print settings: 190–220°C nozzle / 55–60°C bed
Best for: Decorative items, prototypes, indoor products, and the best starting point if you're new to a printer.
Advantages: Excellent print quality straight out of the box, lowest cost of any common filament, minimal warping, no enclosure needed.
Considerations: Softens around 60°C, so it's a poor choice near heat sources. Brittle under sudden impact and not UV-stable for long-term outdoor use.

PLA+ / Tough PLA

Print settings: 200–225°C nozzle / 55–60°C bed
Best for: Functional prints that need PLA's easy printing but more real-world durability — brackets, tool handles, enclosures.
Advantages: Noticeably more impact resistant and less brittle than standard PLA, while keeping PLA's ease of printing.
Considerations: Costs a bit more than standard PLA. Still not heat or UV resistant, so it's not a substitute for PETG or ASA outdoors.

Silk PLA

Print settings: 200–220°C nozzle / 55–60°C bed
Best for: Decorative and display pieces, gifts, ornaments — anywhere the finish itself is the point.
Advantages: Glossy, silk-like sheen with especially vivid colors. Makes for standout display pieces with zero post-processing.
Considerations: Slightly weaker layer adhesion than standard PLA. Best results need slower print speeds and thicker layers, and it strings more easily.

Wood-Fill PLA

Print settings: 190–215°C nozzle / 50–60°C bed
Best for: Decorative items wanting an actual wood look and feel — signs, ornaments, pen holders, nameplates.
Advantages: Can be sanded, stained, and finished like real wood. Genuinely unique texture while printing.
Considerations: The wood particles are abrasive on brass nozzles — use a hardened steel nozzle. Slightly more brittle than standard PLA, and prone to clogging in smaller nozzles.

High-Speed PLA

Print settings: 210–240°C nozzle / 55–65°C bed
Best for: Rapid prototyping and high-volume production where turnaround time is the priority.
Advantages: Formulated to hold quality at high volumetric flow rates, cutting print times significantly on capable printers.
Considerations: You only see the benefit on a printer actually built for high-speed printing. Doesn't add strength over standard PLA.

The PETG Family

PETG (Standard)

Print settings: 230–250°C nozzle / 70–80°C bed
Best for: Functional parts, brackets, organizers — the versatile all-rounder between PLA's ease and ABS's durability.
Advantages: Strong, impact resistant, moisture resistant, and noticeably more heat resistant than PLA while still easier to print than ABS or ASA.
Considerations: Prone to stringing and blobbing on outer walls if not tuned — this usually comes down to retraction distance and speed. Bonds so aggressively to some bed surfaces it can damage them without a release agent.

PETG-CF (Carbon Fiber)

Print settings: 240–260°C nozzle / 75–85°C bed
Best for: Fixtures, jigs, and functional components that need more rigidity than standard PETG can offer.
Advantages: Noticeably stiffer and lighter than standard PETG, and less prone to warping thanks to the fiber reinforcement.
Considerations: Abrasive — requires a hardened steel nozzle. Surface finish is matte rather than glossy, and it's more brittle than standard PETG.

The ABS / ASA Family

ABS

Print settings: 230–250°C nozzle / 90–110°C bed, enclosure recommended
Best for: Mechanical parts, enclosures, and anything you plan to post-process with acetone vapor smoothing.
Advantages: Impact resistant, heat resistant to roughly 100°C, and the only common filament that vapor-smooths to a glossy, injection-molded look.
Considerations: Prone to warping without an enclosed printer. Stronger fumes while printing, so ventilation matters. Not UV-stable for long-term outdoor use.

ASA

Print settings: 240–260°C nozzle / 90–110°C bed, enclosure required
Best for: Outdoor signs, automotive parts, exterior products — anything that lives in direct sun long-term.
Advantages: Excellent UV and weather resistance with a strength and heat profile similar to ABS, minus the UV degradation. For a glossy finish on ASA specifically, see our ASA vapor smoothing guide.
Considerations: Needs an enclosed printer to avoid warping, and shares ABS's fume concerns during printing.

ASA-CF (Carbon Fiber)

Print settings: 250–265°C nozzle / 90–110°C bed, enclosure required
Best for: Outdoor structural parts needing extra stiffness — brackets and mounts exposed to real weather.
Advantages: Combines ASA's UV resistance with added rigidity and less warping thanks to the carbon fiber reinforcement.
Considerations: Abrasive (hardened nozzle required), more expensive, and limited to a matte finish.

The Nylon Family

PA6 (Nylon)

Print settings: 250–270°C nozzle / 70–90°C bed, enclosure recommended
Best for: Gears, bushings, wear parts, living hinges — anything needing toughness and fatigue resistance under repeated stress.
Advantages: Exceptional toughness and wear resistance; handles repeated flexing and impact far better than PLA, PETG, or ABS.
Considerations: Highly hygroscopic — absorbs moisture from the air and must be dried before printing. See our filament drying guide if you're printing nylon regularly. Warps without an enclosure.

PA12

Print settings: 250–270°C nozzle / 70–90°C bed, enclosure recommended
Best for: Similar uses to PA6, where better dimensional stability and lower moisture pickup matter more.
Advantages: Lower moisture absorption than PA6, better dimensional accuracy over time, still very tough.
Considerations: Pricier than PA6. Still benefits from proper drying and an enclosure.

PA-CF (Carbon Fiber Nylon)

Print settings: 260–280°C nozzle / 90–110°C bed, enclosure required
Best for: Robotics, jigs, manufacturing tooling, drone frames — parts needing the best strength-to-weight ratio.
Advantages: Extremely strong and lightweight, very stiff, and warps far less than unreinforced nylon thanks to the fiber content.
Considerations: Very abrasive — a hardened nozzle is mandatory. Needs a high-temp-capable hotend, an enclosure, and careful moisture control.

PA-GF (Glass Fiber Nylon)

Print settings: 260–280°C nozzle / 90–110°C bed, enclosure required
Best for: Parts needing PA-CF-level stiffness where carbon fiber's dark color or RF/EMI blocking isn't wanted.
Advantages: Similar stiffness gains to PA-CF without blocking radio signals, and often slightly less abrasive than carbon-filled nylon.
Considerations: Still abrasive and moisture-sensitive. Less widely available than PA-CF.

The Flexible (TPU) Family

TPU 95A

Print settings: 220–235°C nozzle / 40–60°C bed
Best for: Phone cases, protective feet, bumpers — parts needing flex while keeping some structure.
Advantages: Flexible while remaining durable, and printable on most machines without major modification.
Considerations: Not for rigid structural parts. Can be difficult to feed reliably on Bowden extruders — direct drive is preferred. Prints slower than rigid filaments.

TPU 85A

Print settings: 215–230°C nozzle / 40–60°C bed
Best for: Gaskets, seals, grips, soft-touch overmolds — applications needing genuine rubber-like softness.
Advantages: Very soft and rubber-like, excellent for sealing and cushioning applications standard TPU can't match.
Considerations: Requires slower print speeds and more tuning than 95A. More prone to stringing.

TPU 65D (Rigid Flex)

Print settings: 225–240°C nozzle / 40–60°C bed
Best for: Parts needing slight flex but far more rigidity than standard TPU — snap-fits, semi-rigid brackets.
Advantages: Bridges the gap between rigid filament and soft TPU. Tough and abrasion resistant.
Considerations: Less widely available than 95A/85A. Still needs careful print tuning to get clean results.

TPU (AMS-Safe / AMS-Compatible)

Print settings: 220–235°C nozzle / 40–60°C bed
Best for: Flexible prints on multi-material systems like the Bambu Lab AMS, where standard soft TPU tends to jam in the feed path.
Advantages: Formulated firmer than standard 95A specifically to survive the long PTFE tube path of an AMS or multi-color unit without buckling or jamming — makes flexible parts practical alongside your other colors instead of a separate manual load.
Considerations: Firmer than standard 95A, so it gives up some softness for reliability. Not every "flexible" filament labeled for AMS use is equally reliable — check the manufacturer's AMS compatibility rating before loading a full spool.

Engineering & Specialty Materials

Polycarbonate (PC)

Print settings: 260–310°C nozzle / 100–130°C bed, enclosure required
Best for: Industrial tooling, high-heat mechanical parts, load-bearing enclosures.
Advantages: Outstanding strength and heat resistance — softens between 110–140°C depending on blend. Very tough overall.
Considerations: Demands high nozzle temps, an enclosure, and often an all-metal hotend. Prone to warping without careful setup.

PC-CF (Carbon Fiber)

Print settings: 270–310°C nozzle / 100–130°C bed, enclosure required
Best for: High-performance engineering parts needing PC's heat resistance plus added stiffness.
Advantages: Even more rigid than standard PC, with reduced warping from the fiber reinforcement.
Considerations: One of the most demanding materials to print well — high temps, abrasive, and needs a serious machine to run reliably.

HIPS

Print settings: 220–240°C nozzle / 90–110°C bed
Best for: Dissolvable support material for ABS prints (dissolves in limonene), or standalone lightweight parts.
Advantages: Lightweight, easy to sand, and dissolves cleanly when used as a support material for complex ABS geometry.
Considerations: Not particularly strong as a standalone material. Shares ABS's warping tendency and fume concerns.

Quick Recommendations

• PLA — Best value for indoor prints and first-time printing.
• PLA+ — Best upgrade when PLA parts keep breaking.
• Silk / Wood PLA — Best for display pieces where looks matter most.
• PETG — Best all-around functional material.
• ASA — Best for outdoor use in direct sun.
• ABS — Best for heat resistance and acetone-smoothed finishes.
• Nylon (PA6/PA12) — Best for demanding industrial and wear parts.
• Carbon/Glass Fiber variants — Best for lightweight, high-stiffness engineering parts.
• TPU — Best when flexibility is required.
• TPU (AMS-Safe) — Best for flexible prints on a Bambu AMS or similar multi-material unit.
• Polycarbonate — Best for extreme heat and load-bearing strength.

Still not sure which material fits your project? Tell us what you're building in the comments and we'll point you to the right filament.