Many articles on this website have approached filament as if it’s a simple subject—set the nozzle to 210°C, load PLA, and you’re good to go. This approach might suffice for a beginner’s print, but the filament you select plays a crucial role in determining the final outcome more than nearly any slicer adjustment: it influences strength, flexibility, heat resistance, whether an enclosure is necessary, and if your printer can handle it without modifications. This is a more comprehensive materials guide that the rest of the site has assumed you’d eventually seek out—what each common filament is, when to choose it, and which specialized materials are worthwhile to know about even if you never decide to purchase them.
The Everyday Materials You’ll Use
Specialty Filaments Worth Knowing About
4
Materials cover 90% of prints
190–280°C
Common nozzle range
0.6mm+
Nozzle for abrasive filament
The Everyday Materials You’ll Actually Use
PLA
190–220°C
The default. Low warping, no enclosure needed, huge colour range, easiest material to print well. Brittle under sustained stress or heat above roughly 60°C.
PETG
230–250°C
Tougher and more impact-resistant than PLA, handles higher temperatures before softening. Slightly stringier and more prone to oozing than PLA.
ABS / ASA
240–260°C
Higher heat resistance, classic durable plastic. Warps badly without an enclosed, heated chamber. ASA additionally resists UV yellowing better than ABS outdoors.
TPU
220–250°C
Genuinely flexible and rubbery. Comes in different hardness ratings — 95A is firm and shoe-sole-like, 85A is noticeably softer and stretchier.
These four cover the overwhelming majority of what actually gets printed, and if you only ever own two spools, PLA and PETG is the right pair. PLA is where you learn the printer without fighting the material itself. PETG is the natural first upgrade once you need something that survives being dropped, flexes slightly without cracking, or sits somewhere warmer than a PLA part can tolerate — a phone mount left on a car dashboard in summer is the classic example of PLA quietly failing where PETG wouldn’t.
ABS and ASA sit a tier above both in heat resistance and long-term durability, but they demand an enclosed printer with real chamber heating to print without warping — without one, expect lifted corners and cracked layers regardless of how carefully you tune everything else. ASA specifically resists UV breakdown far better than ABS, which matters if the finished piece will ever sit in direct sunlight.
TPU needs a direct-drive extruder, not a Bowden setup. Flexible filament buckles and jams in the long, flexible tube a Bowden system pushes filament through before it reaches the nozzle. A direct-drive extruder — where the drive gear sits right above the hotend — has almost no unsupported length for the filament to buckle in, which is the difference between TPU printing reliably and TPU printing not at all.
Specialty Filaments Worth Knowing About
Beyond the everyday four, there’s a genuinely wide range of specialty filaments that solve specific problems or add specific effects. You don’t need any of these for most projects, but knowing they exist means you’re not stuck reaching for paint when a material would actually do the job better.
🪵Wood-fill and metal-fill composites. PLA blended with actual fine wood particles or metal powder (bronze, copper, steel are the common ones). These print at standard PLA temperatures but produce a genuinely different surface — wood-fill can be sanded and stained like real wood, and metal-fill parts can be polished to a real metallic shine. Both are noticeably more abrasive on your nozzle than standard PLA.
🧵Carbon-fiber and glass-fiber reinforced filaments. Short fiber strands mixed into a PETG, nylon, or PA base for significantly increased stiffness and reduced warping — genuinely used for functional, load-bearing parts in a way standard filament isn’t. These are seriously abrasive and will wear through a standard brass nozzle in a fraction of the time a hardened steel nozzle lasts, so check your printer’s nozzle material before running anything fiber-filled through it.
✨Silk PLA. A PLA variant formulated to produce an unusually glossy, almost metallic sheen straight off the printer with no post-processing. Prints slightly hotter than standard PLA and is more prone to stringing, but the finish genuinely can’t be replicated with paint on regular PLA.
🌙Glow-in-the-dark filament. Standard PLA loaded with phosphorescent particles that charge under light and glow for a while after. The particles are mildly abrasive, and colour options are limited since the glow additive dominates the base colour, but for the right project it’s a genuine effect rather than a gimmick.
🌡️Thermochromic and UV-reactive filaments. Change colour with temperature or sunlight exposure. Novel, genuinely fun for the right small project, but expect more brittleness and less colour consistency than a standard filament — treat these as a special-occasion material, not a workhorse.
Any abrasive filament needs a hardened nozzle. Wood-fill, metal-fill, carbon-fiber, and glass-fiber filaments will wear through a standard brass nozzle far faster than normal — sometimes within a handful of prints. If you’re planning to use any of these regularly, a hardened steel or ruby-tipped nozzle isn’t optional; it’s the difference between the investment paying off and replacing a $5 part every few days.
Support and Dissolvable Materials
For prints with supports on multi-material printers, a small category of materials exists purely to be removed afterward rather than to be part of the finished object. PVA dissolves cleanly in plain water and pairs with PLA, but it’s genuinely hygroscopic — it absorbs moisture from the air faster than almost anything else on a shelf, so it needs to be stored properly or it degrades within days rather than months. HIPS dissolves in limonene (a citrus-based solvent) and is the traditional support pairing for ABS, since both print at similar temperatures. Neither is necessary for the support-painting workflow covered in our Maria’s Crown build log, but they’re worth knowing about if you move to a printer with true multi-material capability.
Moisture is the hidden variable behind a lot of “random” print quality issues. Nylon, TPU, and PVA are all significantly more hygroscopic than PLA or PETG, meaning they absorb ambient moisture noticeably faster. A spool that’s been sitting open for a few weeks can produce popping sounds during printing, rough surface texture, and weaker layer bonding — all of which look like a printer problem but are actually a filament problem. If a material that used to print cleanly suddenly looks worse for no obvious reason, drying it before blaming your settings is worth trying first, and it’s the same root cause covered in the layer delamination section of our troubleshooting guide.
Which One Should You Actually Buy
Start with PLA — a single spool in whatever colour you like, from a known brand rather than the cheapest unbranded option available. Learn your printer on it. Once you hit a project that needs to survive a drop, flex slightly, or sit somewhere warm, add a spool of PETG. That combination genuinely covers most of what a beginner to intermediate maker will print in the first year, and every specialty material above is worth buying only once you have a specific project that actually calls for it — not before.
The material is half the print
It’s easy to treat filament as an afterthought once you’ve got your slicer settings dialed in, but the material you load genuinely changes what’s possible before a single setting gets touched — strength, flexibility, heat resistance, finish, all of it starts with the spool, not the software. Get comfortable with PLA and PETG first, and the rest of this list will make a lot more sense as you actually need it. For the temperature and cooling settings that go with each of these, our full Orca Slicer setup guide covers exactly where to adjust them.
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