PLA is the easiest 3D printer filament for beginners and visual models, PETG adds toughness and chemical resistance for functional parts, ABS withstands heat and impact but needs an enclosed printer, and TPU is a flexible rubber-like filament for bendable items such as phone cases and gaskets. Each material suits a different stage of a maker's journey, and the right choice depends on what the finished part needs to do rather than which filament looks the most impressive on a spool.
Key Takeaways
- PLA prints at 190°C to 220°C, rarely warps, and remains the most forgiving 3D printer filament for prototypes, toys, and display models.
- PETG bridges the gap between PLA and ABS, offering strong layer adhesion and chemical resistance for brackets and outdoor parts.
- ABS handles temperatures up to roughly 100°C but shrinks as it cools, so an enclosed printer and good ventilation matter.
- TPU stretches and compresses, making it the go-to 3D printer filament for wearables, gaskets, and grips.
- Storage in a dry, sealed container extends the working life of every filament type, particularly PETG and TPU, which absorb moisture quickly.
| Filament | Ease of Print | Heat Resistance | Flexibility | Best For |
|---|---|---|---|---|
| PLA | Very easy | Low, warps near 60°C | Rigid | Prototypes, toys, miniatures |
| PETG | Moderate | Moderate, around 80°C | Low, slight give | Functional brackets, outdoor parts |
| ABS | Harder, warps easily | High, around 100°C | Rigid | Automotive parts, high-wear items |
| TPU | Harder, needs tuning | Moderate | Highly elastic | Phone cases, gaskets, wearables |
PLA, PETG, ABS and TPU: The Main 3D Printer Filament Types
Picking the correct 3D printer filament shapes how a print looks, how long it lasts, and whether it survives the job 3D printing was designed for. South African makers working from a Johannesburg garage or a Pretoria spare room generally start with 3D printing filament made from polylactic acid before branching into tougher materials as their projects demand more from the finished part.
Every 3D printer filament on this list shares the same 1.75mm diameter standard, so swapping between materials does not require a different printer. What changes is the nozzle temperature, the bed temperature, the cooling settings, and in some cases the printer enclosure. Understanding these differences before buying a spool prevents failed prints and wasted material.
PLA 3D Printer Filament for Beginners
PLA, or polylactic acid, remains the gold standard 3D printer filament for anyone starting out. It is made from renewable resources including corn starch, prints at lower temperatures than the other materials on this list, and rarely warps on an open-frame printer. PLA provides high stiffness and tensile strength, though it can be brittle and prone to scratching on parts that see daily handling.
- Nozzle temperature: 190°C to 220°C
- Heated bed temperature: 50°C to 60°C, optional but recommended
- Weakness: a low melting point means parts left in a hot car or direct Highveld sunlight can warp out of shape
PETG 3D Printer Filament for Functional Parts
PETG, short for polyethylene terephthalate glycol, suits makers who need parts that survive daily use rather than sit on a shelf. This 3D printer filament combines much of the impact resistance associated with ABS with the printing ease of PLA, making it a favourite for brackets, tool holders, and outdoor fittings. PETG shows good layer adhesion and chemical resistance, though it can string between features if retraction settings are not tuned correctly.
- Nozzle temperature: 230°C to 250°C
- Heated bed temperature: 70°C to 80°C
- Weakness: post-processing such as sanding or painting takes more effort than with PLA, and retraction settings need attention
ABS and TPU 3D Printer Filament for Demanding Applications
ABS 3D Printer Filament and Heat Resistance
ABS, or acrylonitrile butadiene styrene, is the toughness specialist among common 3D printer filament types. It is the same material used in everyday items such as LEGO bricks and hard hats, and it tolerates heat and shock far better than PLA. The catch is that ABS shrinks as it cools, which makes it prone to warping or cracking on printers without an enclosure. ABS also releases noticeable fumes during printing, so a ventilated space or extraction fan is necessary.
- Nozzle temperature: 220°C to 250°C
- Heated bed temperature: 95°C to 110°C
- Weakness: fumes and shrinkage make this 3D printer filament unsuitable for open-frame printers in unventilated rooms
TPU 3D Printer Filament for Flexible Parts
TPU, or thermoplastic polyurethane, is the flexible 3D printer filament of choice for anything that needs to bend, stretch, or compress. This elastomer suits phone cases, drone props, gaskets, and wearable designs, and it resists grease, oil, and abrasion better than the rigid materials above. Printing TPU well takes patience, as the filament tends to tangle or bind in extruders that are not direct drive.
- Nozzle temperature: 220°C to 250°C
- Heated bed temperature: 40°C to 60°C
- Weakness: demands slower print speeds and a direct-drive extruder for reliable feeding
3D Printer Filament Range at 3D Printing Store
3D Printing Store stocks a wide selection of 3D printer filament from trusted brands including Wanhao and Creality, all in the universally compatible 1.75mm diameter. The spools below cover PLA, PETG, and TPU options suited to the materials discussed above, with stock held at the Boksburg and Centurion branches for collection or delivery across Gauteng.
Wanhao PLA+ Filament, 1kg, 1.75mm, White
A reliable PLA+ 3D printer filament with a smoother surface finish and lower brittleness than standard PLA. The bright white tone suits display models, photographic props, and parts destined for painting or sanding.
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Creality PETG Filament, 1kg, 1.75mm, Black
A dependable PETG 3D printer filament with constant diameter and bright, consistent colour for repeatable prints. The black finish suits brackets, tool holders, and outdoor parts that need chemical resistance and durability.
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Wanhao PLA Filament, 1kg, 1.75mm, Purple
A vibrant purple PLA 3D printer filament with the low thermal expansion that PLA is known for, reducing warping and curling on long print runs. Suited to educational props, artistic models, and display pieces.
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Wanhao Flexible Filament (TPU), 1kg, 1.75mm, Black
A rubber-like TPU 3D printer filament ideal for wearable items, phone covers, grips, and pulley belts. Best fed through a direct-drive extruder with a PTFE tube supporting the path from gear to hot end.
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Creality PETG Filament, 1kg, 1.75mm, Transparent
A clear PETG 3D printer filament that keeps the low shrinkage and impact resistance PETG is known for, while adding a transparent finish for light covers, enclosures, and parts where visibility matters.
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Wanhao PLA+ Filament, 1kg, 1.75mm, Red
A bold red PLA+ 3D printer filament offering the smoother finish and reduced brittleness of the PLA+ formula. A popular choice for cosplay parts, branded items, and eye-catching prototypes.
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Wanhao PLA Filament, 1kg, 1.75mm, Silver
A metallic silver PLA 3D printer filament with the same tight diameter tolerances as the rest of the Wanhao range, giving clean, predictable extrusion for mechanical housings and architectural models.
View ProductHow to Choose the Right 3D Printer Filament for Your Printer
The best 3D printer filament for a given job depends on the printer itself as much as the material. An open-frame 3D printer without a heated enclosure handles PLA and PETG comfortably, but struggles with ABS due to warping and fumes. A printer with an enclosed chamber and an all-metal hot end opens up ABS, and with the right firmware tuning, TPU as well.
Matching 3D Printer Filament to Your Printer's Capabilities
Check the maximum hot end temperature and bed temperature your printer can reach before buying a spool. Most entry-level machines top out around 250°C at the nozzle, which covers PLA, PETG, and TPU, but ABS at the higher end of its range may need a printer with an upgraded heater block. Direct-drive extruders make TPU far easier to print than Bowden setups, so check the extruder type before committing to flexible filament.
Storage and Handling of 3D Printer Filament
PETG and TPU absorb moisture from the air faster than PLA, and damp filament leads to stringing, popping sounds during extrusion, and a rough surface finish. Store every spool in a sealed container with desiccant between sessions. For a deeper look at how storage conditions affect shelf life, 3D Printing Store has covered how long PLA filament lasts in storage in a dedicated guide.
New makers who want hands-on guidance with filament selection, slicer settings, and printer calibration can book a session through the 3D printer training courses offered by 3D Printing Store, which cover material handling alongside machine setup. The full range of spools, including additional colours and specialist materials, sits in the 3D printer filament collection on the 3D Printing Store website.
Frequently Asked Questions
What is the difference between PLA, PETG, ABS and TPU?
PLA is a rigid, easy-to-print 3D printer filament made from renewable resources, ideal for prototypes and display models but weak in heat. PETG adds chemical resistance and impact strength while remaining fairly easy to print, suiting functional brackets and outdoor parts. ABS handles high temperatures and shocks well, matching the toughness of items like LEGO bricks, but it shrinks as it cools and needs an enclosed printer with good ventilation. TPU is a flexible, rubber-like elastomer that stretches and compresses, making it the right choice for phone cases, gaskets, and wearable designs, though it prints more slowly and needs a direct-drive extruder.
What is the holy grail of 3D printing?
Among hobbyists, the phrase often describes the search for a single 3D printer filament that combines the ease of PLA, the strength of ABS, the chemical resistance of PETG, and the flexibility of TPU in one material. No filament currently achieves all of these properties at once, which is why makers keep several spools on hand and choose the material based on the demands of each individual part rather than expecting one filament to cover every job.
What is illegal to print on a 3D printer?
South African law restricts the manufacture of unlicensed firearms and firearm components regardless of the production method, including 3D printing, under the Firearms Control Act. Printing items that infringe copyright, trademarks, or patents without permission can also create legal exposure. Reproducing official identification documents, currency, or counterfeit safety-rated parts is similarly prohibited. The 3D printer filament itself is not regulated, but the legality of an object depends entirely on what is being produced and how it will be used.
Which is stronger, PLA, PETG or ABS?
Strength depends on what kind of stress a part faces. PLA offers high stiffness and holds detail well, but it is brittle and cracks under sudden impact. PETG provides better layer adhesion and impact resistance than PLA while remaining easy to print, making it a strong all-rounder for functional parts. ABS handles heat and repeated impact best of the three and matches the toughness used in items such as automotive trim and hard hats, but only when printed correctly on an enclosed machine, since warping and weak layers undermine its strength advantage.
Which 3D printer filament should beginners in South Africa start with?
PLA remains the recommended starting 3D printer filament for South African beginners, since it prints at lower temperatures, rarely warps on open-frame machines, and tolerates Gauteng's varying workshop temperatures without an enclosure. Once a maker is comfortable with slicer settings and bed levelling, PETG is a natural second material for functional parts that need to survive daily handling. ABS and TPU are better suited to printers with enclosures, all-metal hot ends, and direct-drive extruders, so most beginners introduce these materials once their printer and skills have developed further.