3D printing material guide: which filament suits your project?
The right material depends on where and how the object will be used. Along with colour, consider heat resistance, stiffness, flexibility and printing requirements. This guide helps you compare the options.
This guide covers the main FDM/FFF filament families : materials for printers using melted plastic filament. Resins, powder-bed processes and metal printing belong to other technologies. Not every material described is currently offered by 3DHub; we discuss the specific options for your project.
What is the object for?
These are starting points, not automatic promises of suitability. Design, wall thickness and print orientation can change what the same object can be used for.
Find your material
Everyday materials
Useful families to explore as a beginner or for practical objects.
Detailed indoor objects and an easy start.
What is it good for? PLA is often a sensible choice for a figure, Christmas ornament, sign or drawer organiser. It is stiff, reproduces detail well and comes in many colours. It also suits visual prototypes: you can quickly check size and proportions.
What should you consider in use? Stiffness is not the same as impact resistance. Thin parts can break, and heat can cause deformation. For summer cars, near radiators or prolonged outdoor use, usually consider another material. Plant-based origins do not mean the finished object will decompose in home compost.
Printing advice
It warps relatively little and usually does not need a warm enclosed printing space. Suitable part cooling helps small details and bridges. An overly warm chamber may cause unreliable feeding. Start with the manufacturer’s PLA profile and check the finish on a small test.
Tougher everyday holders and covers.
What is it good for? A practical choice for regularly handled objects: holders, organisers, protective covers and simple functional parts. It is generally less brittle and more tolerant of heat than basic PLA.
What should you consider in use? It is not heatproof in every situation and can deform over time under load. It may produce more stringing and need tuning for tiny details. For water-holding objects, the filament name does not guarantee a watertight print.
Printing advice
Dry filament, suitable temperature and retraction together reduce stringing. More retraction is not the answer to every problem. PETG can adhere too strongly to some smooth PEI sheets: use the surface or release layer recommended by the sheet manufacturer and remove the print after cooling.
When the object needs to bend or spring back.
What is it good for? TPU is a common flexible-plastic family; TPE is a broader umbrella term. They can suit bumpers, non-slip feet, softer protectors and grips. Wall thickness and infill also strongly affect the finished flexibility.
What should you consider in use? Compare Shore hardness on the same scale: A and D are not interchangeable. A flexible material is not necessarily soft foam. Allow for compression in precise fits; engineering seals require separate assessment of the medium and load.
Printing advice
Soft filament can buckle during feeding, so it needs steady, lower flow and a well-guided filament path. Drying is often necessary. Check AMS compatibility for the specific TPU and feeder: a version designed for AMS is not the same as all other TPU.
Copolyester for impact-exposed practical objects.
What is it good for? PCTG is related to PETG but has a different formulation. Consider it when toughness, impact resistance or translucency matters. For example, 3DXTECH MAX-G is a PCTG marketed with improved ductility.
What should you consider in use? Benefits vary between brands, so compare the specific PCTG datasheet with your chosen PETG. Chemical resistance must be assessed against the actual chemical, temperature and contact time.
Printing advice
Use a PCTG profile rather than automatically adopting PETG settings. The manufacturer’s MAX-G example specifies a 250–270 °C nozzle and 70–90 °C bed; this is not a recipe for every PCTG. Dry damp filament according to its manufacturer’s instructions.
Engineering materials
The use environment and controlled processing take priority here.
A natural candidate for outdoor use.
What is it good for? Consider it for sun-exposed covers, outdoor holders and markers. UV resistance is its main advantage over ABS; it is also a tough engineering material with good heat tolerance.
What should you consider in use? Colour, wall thickness and load also influence outdoor durability. Large flat parts still face shrinkage; finished dimensions depend on more than model dimensions alone.
Printing advice
Use a warm, even printing environment and suitable bed adhesion; a brim often helps large parts. Draughts can cause delamination or lifting. Chamber temperature stability and room ventilation must both be addressed; an enclosure alone is not a ventilation solution.
Tough engineering parts with careful temperature control.
What is it good for? It can suit housings, prototypes and mechanically loaded parts. It is generally a better starting point than basic PLA in warm environments and can give a workable surface for post-processing.
What should you consider in use? ASA is usually a better candidate for sunny outdoor locations. Larger ABS parts can curl and crack; excessive shrinkage can also spoil fits.
Printing advice
Expect an enclosed, stable-temperature space and a well-prepared bed. Strong part cooling can weaken layer bonding. Suitable ventilation is needed for emissions. Acetone smoothing is a separate solvent-based finishing process, not a simple print setting, and can change detail and dimensions.
Parts exposed to wear and repeated loads.
What is it good for? Polyamides are used for sliding, wearing and toughness-demanding engineering parts. Thick sections can be strong while thin sections remain flexible. PA6, PA11 and PA12 describe different polymers, not a quality ranking.
What should you consider in use? Moisture affects both printing and the finished part’s properties and size. For tight fits, the use environment therefore matters. Nylon is not automatically better for every holder.
Printing advice
Dry according to the manufacturer and keep it dry during printing too. Popping, bubbles and uneven surfaces may indicate moisture. Suitable PA adhesion, a stable environment and test parts accounting for shrinkage are needed. Do not substitute a filled-PA profile for unfilled nylon’s profile.
Stiff, tough parts for higher heat requirements.
What is it good for? Polycarbonate may be justified for engineering parts where heat and mechanical loads both matter. PC Blend can describe a blend modified for printability.
What should you consider in use? Pure PC and different blends can vary substantially. A PC label alone does not tell you what the finished part can withstand. Warping of large flat shapes and layer cracking can be serious challenges.
Printing advice
Check whether the hotend, bed and chamber suit the specific filament. Drying and a warm enclosure are often needed. Consider excessive adhesion when choosing a surface: a suitable release layer protects the bed. Test a small sample before making a critical fit.
Candidates for light, flexible and chemically resistant objects.
What is it good for? PP can suit lightweight objects, repeatedly bending elements and certain chemical environments. It is interesting when very stiff behaviour is not the aim.
What should you consider in use? Chemical resistance of the printed part needs separate checking. Properties known from injection-moulded PP cannot automatically be transferred to a layered print. Difficult adhesion makes it an uncommon beginner material.
Printing advice
Bed adhesion is a major challenge: a PP-specific sheet or manufacturer-recommended surface can help. Address cooling shrinkage and geometry too. Follow the filament datasheet, particularly for filled PP; PP-CF/GF may be abrasive.
Copolyesters for functional prototypes.
What is it good for? CPE is a name used for copolyesters. It may suit tougher prototypes and functional parts with good layer adhesion. PET, PETG and CPE are related but not interchangeable names.
What should you consider in use? Different formulations may use the CPE label. Plain PET and PET-CF cannot be treated as PETG; temperatures and processing may differ. Translucent filament does not automatically produce an optically clear, glass-like object.
Printing advice
Use the manufacturer’s own profile. For example, Prusa’s CPE guide mentions a 275 °C nozzle and 90 °C bed. Drying and stringing control matter, and adhesion to smooth PEI can be excessive. Decide on a release layer using both the sheet and filament instructions.
Stiffness and dimensional stability appropriate to the base polymer.
What is it good for? CF indicates carbon-fibre filling; GF indicates glass fibre. PLA-CF, PETG-CF, PA-CF, PA-GF, PC-CF and other variants exist. Added fibres typically change stiffness and dimensional stability; the matte engineering finish can also be attractive.
What should you consider in use? Fibre reinforcement does not mean greater strength or impact resistance in every direction. PLA-CF does not gain the heat tolerance of an engineering PA blend. Layer bonding and load direction remain decisive.
Printing advice
Wear-resistant nozzles and compatible feeding components are needed. The filament manufacturer specifies the minimum nozzle diameter. Drying, chamber and bed requirements follow the base polymer. Control dust when sanding, and check AMS suitability for the specific product.
For specialised engineering requirements.
What is it good for? These are not grades of one material. PPA is a polyamide family, while PPS, PEEK, PEKK and PEI are other polymers; fibre-filled versions are common too. They may suit greater heat or chemical demands, but the exact purpose must be assessed from the specific datasheet.
What should you consider in use? Even a high-end desktop printer is not automatically suitable for all of them. Many PEEK, PEKK and PEI variants require industrial processing temperatures. A more expensive spool does not correct faulty geometry.
Printing advice
First check the printer’s rated temperature range, chamber, drying and material profile. Then make test specimens and check dimensions. For PPA-CF/PPS-CF, also check abrasion resistance and feedability; brand compatibility tables are particularly important here.
When a measurable specialised property is required.
What is it good for? ESD can indicate material intended to manage electrostatic discharge, while FR may indicate a flame-retardant variant. These can use PLA, PETG, ABS, PC or another base polymer. They may be relevant to electronics fixtures or specialised housings.
What should you consider in use? The label does not automatically certify the finished print. Test method, wall thickness, colour, print orientation and the specific product certification may matter. ESD is not simply conductive plastic, and FR does not mean the object cannot burn.
Printing advice
Start with the manufacturer’s processing instructions and check nozzle requirements caused by additives. If the part must meet specified electrical or fire performance, the finished part must also be tested appropriately for the task.
Special finishes and low weight
Variants selected for appearance or weight.
Look for the property behind the name.
What is it good for? PLA+ and Tough are typically names for modified PLA product families; matte and silk focus on appearance. Silk shine can suit an ornament, while a restrained matte finish may suit lettering.
What should you consider in use? These are not uniform standards. Two PLA+ spools may differ in toughness and heat tolerance. Do not treat a special finish as automatically greater load capacity, or substitute a basic PLA datasheet for the actual product’s datasheet.
Printing advice
Start with the specific product’s profile. Speed and temperature can affect gloss, so print adjacent objects with the same settings. For mechanical tasks, consult manufacturer measurements and a test print rather than just the packaging name.
Smooth, partly translucent design surfaces.
What is it good for? It can suit decorative vases, light-transmitting shapes and display objects. PVB can be smoothed afterwards using isopropyl alcohol, making layers less noticeable.
What should you consider in use? Smoothing changes dimensions and fine edges too. It is not the first choice for loaded engineering parts or locations near heat. For lampshades, heat exposure must be checked separately; attractive translucency alone is insufficient.
Printing advice
Basic printing may resemble PLA, but it needs its own profile. A dry spool, suitable wall thickness and consistent extrusion help. IPA finishing involves a flammable solvent; use suitable equipment and follow the manufacturer’s handling instructions.
Decoration with distinctive texture and finish.
What is it good for? Wood- or metal-powder-filled filament uses particles in a plastic base to create a different look and feel. This can give decorations or signs more character. Marble-effect or metallic-coloured products do not necessarily contain real stone or metal.
What should you consider in use? Metal-filled plastic is not a solid metal component. Filling can change weight, fracture behaviour and finishing options. The exact composition matters, not just the product name.
Printing advice
Check the manufacturer’s nozzle diameter and abrasion recommendations: particles can cause blockages or wear. Avoid prolonged hot idle time, particularly with some wood blends. Start with a short test before printing a large decoration.
Large shapes with less weight.
What is it good for? It can suit model aircraft, costume props and other light, thin-walled shapes. Actively foaming PLA expands during printing, so the same external volume can use less material mass.
What should you consider in use? Lower weight comes with different mechanical behaviour. It is not simply lighter normal PLA, and not every lightweight product foams in the same way. Processing affects dimensions and finish.
Printing advice
Temperature, speed and flow together control foaming. Calibrate flow separately; blindly using a normal PLA profile can produce inaccurate walls. Oozing during travel is common, making model-specific print paths and continuous walls particularly important.
Support materials
They assist production; the finished object is usually made from something else.
Water-soluble supports for complex shapes.
What is it good for? They can help in internal cavities and hard-to-reach areas where conventional supports cannot be cleanly broken away. The object uses another material; soluble filament assists production.
What should you consider in use? Not every PVA or BVOH adheres to every base material. Temperature range, the material pair and the printer’s multi-material handling all matter. Using the special material only for support interfaces can often reduce cost.
Printing advice
These filaments are particularly moisture sensitive. Dry storage and dry feeding are needed; damp filament may adhere poorly or clog the nozzle. Test the specific material pair and switching settings on a small sample, and follow manufacturer instructions for removal and waste handling.
For lightweight models and soluble supports.
What is it good for? HIPS is impact-modified polystyrene. It can suit lightweight models and, with a suitable material pair, soluble supports. Its surface can be post-processed.
What should you consider in use? The support-removal solvent may attack the finished object too. HIPS is therefore not a universal solution alongside any ABS, ASA or PETG model. Check the material pair and solvent together.
Printing advice
It needs its own higher-temperature profile and suitable bed adhesion. Start with a small multi-material test to check adhesion and removal. Follow the safety datasheet and ventilation instructions for solvent handling; do not treat HIPS as a water-soluble support.
Better contact surfaces and easier removal.
What is it good for? Breakaway and dedicated support materials aim to separate where required. They are often used only in layers touching the object, reducing special-material consumption.
What should you consider in use? Support for PLA/PETG indicates intended compatibility, not a universally suitable structural material. Not every support is water soluble; mechanically removable and soluble products are different categories.
Printing advice
Use only the recommended base material and matching profile. Check support gaps, interface layers, purging and feeder compatibility. Identify supports that would remain trapped inside the model during slicing.
Temperatures: a starting point, not a complete recipe
Nozzle temperature describes how the material is processed. It is not the finished object’s permitted service temperature. The table gives examples from specific manufacturer guides, not settings valid for every brand.
| Material and source | Nozzle | Bed | Note |
|---|---|---|---|
| PLA · Prusa | 215 / 210 °C | 60 °C | First / subsequent layers |
| PETG · Prusa | 230 / 240 °C | 85 / 90 °C | First / subsequent layers |
| ABS · Prusa | 255 °C | 80–110 °C | Bed temperature depends on size |
| MAX-G PCTG · 3DXTECH | 250–270 °C | 70–90 °C | Specific PCTG product |
| PC Blend · Prusa | 275 °C | 110 / 115 °C | First / subsequent layers |
| Flex · Prusa guide | 230–245 °C | 60–75 °C | According to hardness, brand and size |
The manufacturer’s current profile, bed type and printer’s permitted range take priority. After changing nozzle, speed or cooling, check flow and layer adhesion again.
Drying and storage: two separate jobs
A sealed container and desiccant help keep a spool dry. They do not necessarily dry filament that is already damp. For nylon, TPU and soluble supports in particular, start troubleshooting with moisture.
Popping, bubbles, unusual stringing or weak layer bonding can indicate moisture, but none proves it alone. Choose drying time and temperature according to the specific filament and spool instructions. Excessive heat can fuse filament or deform the spool. Use suitable equipment with controlled temperature.
For long prints, feed moisture-sensitive material from a dry environment. Newly opened does not always mean reliably dry.
Source: Prusa: drying and storage.
Common problems – where should you start?
| What you see | What to check first |
|---|---|
| Corners lifting | Clean, suitable bed, first layer, draughts, chamber and model geometry. |
| Lots of fine strings | Moisture, nozzle temperature, flow and material-appropriate retraction. |
| Breaking at layers | Print orientation, cooling, temperature, wall thickness and load. |
| Uneven feeding | Free spool movement, filament path, nozzle, speed and material profile. |
| Difficult removal from the bed | Wait for cooling; check whether a release layer was needed. |
These are investigation directions, not exclusive diagnoses. Change one setting at a time and compare results on small samples.
Other points to clarify
Which material is strongest?
First define the load. Stiffness, tensile strength, impact resistance and heat tolerance are different properties. Manufacturer test direction and printed-part design also matter.
Can every filament be used in AMS?
No. The specific feeder and filament matter together, particularly for soft, brittle or abrasive materials. Check the manufacturer’s compatibility table; a spool physically fitting is not enough.
Can two different plastics be printed together?
Some pairs can, but adhesion and processing temperature may limit them. Multicolour printing using the same base polymer differs from making an object from several materials. Poor adhesion can help support removal but is a defect in structural joints.
Will it be safe in contact with food or hot liquids?
This cannot be decided from the material name alone. Additives, printing process, surface cleanability and conditions of use all matter. Discuss such requirements in advance rather than relying on a general filament description.
If you are choosing between the two most common materials, see the PLA or PETG comparison. For several colours, the multicolour printing guide can help.
Sources and using this guide
Technical background is based on the Prusa, Bambu Lab and 3DXTECH manufacturer guides linked above. Checked: 27 September 2026. Examples provide guidance; the specific filament’s current technical and safety datasheets and the printer manufacturer’s instructions take priority.
Further comparison: Prusa material table · Bambu Lab filament guide. This article is not a stock list and does not certify suitability for a specific application.
