What is the Strongest 3D Printer Filament? (2023) – Clever Creations (2023)

PEEK is the strongest 3D printer filament with an ultimate tensile strength of more than 7250 PSI. However, because PEEK requires high printing temperatures, Polycarbonate filament is an often preferred alternative that also offers high strength to your 3D prints.

The strength of your 3D printed part greatly depends on your filament material. In critical load-bearing applications, you must choose a strong 3D printer filament that is able to resist deformation. Knowing the strength of popular filaments will help you make better decisions in your designs and select the best material for your parts.

In this article, we’ll look at six different filaments and compare their strength and mechanical properties to determine which is the strongest 3D printer filament. We’ll also provide some tips on how you can use these filaments to create strong, long-lasting 3D printed parts.

Table of Contents show

What types of strength are there?

Tensile Strength

The tensile strength indicates the material’s ability to withstand deformation when stretched. It is used to test the strength of any material, and in our case, the strength of the 3D printed model. Tensile strength gives you an idea about how far you can load an object before it fails.

For example, the tensile characteristics of a carabiner will let you know if it’s safe to use for mountaineering. The strongest 3D printing filament should have a high tensile strength so that your models don’t fail or break easily.

PEEK, Polycarbonate, and Carbon fiber-infused filaments have some of the highest tensile strengths and are strong filaments apt for load-bearing applications.

Impact resistance

Impact strength is the measure of a material’s ability to withstand an impact without breaking or fracturing. The higher the impact strength of a filament, the less likely it is to break or fracture when subjected to sudden stress.

Polycarbonate, Nylon, and PEEK are all examples of 3D printing filament with excellent impact resistance. These materials can bear high sudden loads before they fracture and fail. These materials are typically used for tool housings, safety boxes, eyeglasses, and safety equipment.

Other considerations

Chemical resistance

Chemical resistance matters when your application involves chemical liquids and a harsh environment. Nylon and Polycarbonate have excellent chemical resistance. They’re useful for 3D printing objects that will come into contact with harsh chemicals. ABS is also resistant to some chemicals, but not as much as nylon and polycarbonate.

UV resistance

Outdoor applications demand a 3D printer filament with high UV resistance. The UV exposure from sunlight weakens the material’s bonds and can cause your parts to fail. 3D printing filaments like ABS, ASA, and Nylon are most resistant to UV light. These are the ones you want to use for outdoor functional applications.

Temperature resistance

High-temperature applications will need 3D printing filament that does not soften at those temperatures. The strongest filament for these applications needs to have high heat resistance, as it must be able to perform under extreme conditions without any failure.

Nylon, PEEK, and Polycarbonate filaments have more heat resistance than other filaments, but keep in mind that they do need to be 3D printed at higher temperatures than others. This means you need to make sure that your 3D printer hot end can handle these temperatures.

What is the strongest 3D printer filament?


What is the Strongest 3D Printer Filament? (2023) – Clever Creations (1)

Polycarbonate (PC) is known for its high-impact resistance, excellent toughness, and temperature resistance. It is one of the strongest filaments with transparent and lightweight qualities. A 2020 study concluded that polycarbonate filament has an Ultimate tensile strength of over 5200 PSI, making it one of the strongest 3D printer filaments on the market today.

Polycarbonate filament has good chemical and UV resistance too. Moreover, it can withstand high temperatures of up to 140 °C before softening. It is even used as an additive to enhance ABS filament’s properties to a great extent. Combined, these characteristics let you print protective equipment, medical instruments, and functional prototypes.

(Video) The BEST 3D printing material? Comparing PLA, PETG & ASA (ABS) - feat. PRUSAMENT by Josef Prusa

Yet, PC filament is tough to print, warps easily, and can absorb moisture from the air. To deal with this, an enclosed 3D printer and proper filament storage are recommended.

Deal with these challenges successfully and you can enjoy Polycarbonate as the strongest 3D printer filament for durability and high-temperature applications.


Nylon filament belongs to a class of Polyamide plastics. They’re known for their excellent mechanical strength and low coefficient of friction. Nylon is a common material in SLS 3D printing, but there are also plenty of FDM Nylon 3D printers that you can use to successfully 3D print with this material.

BCN3D’s testing of Nylon filament showed an impact strength of approximately 75 kJ/m2. This is higher than PLA, ABS, and PETG, making Nylon filament one of the best 3D printer filaments for high-impact applications. The low coefficient of friction and its high impact-resistant nature make Nylon a perfect material for gears, machine parts, hinges, and jigs and fixtures.

The downside of Nylon filaments are their hygroscopic nature and a tendency to warp easily, similar to Polycarbonate filament. You need a finely controlled printing environment to ensure that you can print Nylon without problems.


What is the Strongest 3D Printer Filament? (2023) – Clever Creations (3)

Acrylonitrile Butadiene Styrene (ABS) filament was one of the earliest 3D printing thermoplastics. It is still a relatively widely used material due to its versatility and low price, but both PETG and ASA filament are starting to be favored more and more over ABS because of their superior properties.

A 2019 study shows that ABS has an ultimate tensile strength of more than 4500 PSI. This gives ABS a lower tensile strength than polycarbonate filament, but its relative ease of printing and accessibility can still make it a better choice.

You can use ABS for functional prototypes, boxes, and automotive components. Its high melting temperature allows for better heat resistance than other 3D printing filaments. This is important for applications where the product needs to withstand higher temperatures, such as in a car that’s exposed to direct sunlight.

You can post-process your ABS 3D printed parts using Acetone. It’ll give your parts a smooth surface finish with a glossy look. This makes ABS filament suitable for printing aesthetic models and figures.

But, like other high-temperature thermoplastics, ABS filament tends to warp easily. Although you can print it on most budget 3D printers, it helps if you 3D print ABS filament inside of a 3D printer enclosure. This helps with containing 3D printing fumes as well, a common problem with ABS filament.


TPU (Thermoplastic Polyurethane) filament is a flexible filament with excellent toughness and impact resistance. Its flexibility depends on the blends of materials. It can be varied by the manufacturer to offer high rigidity or high elasticity.

Devin from Make Anything tested various brands of TPU filament. He concludes that many TPU filaments can withstand high loads before they break. It is resistant to wear and tear due to abrasion and exhibits strong chemical resistance. It is suitable for printing protective gears, phone cases, prosthetics, and even footwear.

(Video) How to Make free & easy filament for 3D printer at home

TPU prints at lower temperatures and doesn’t need high-end 3D printers. But the flexible nature of TPU makes it difficult to 3D print with Bowden extruders. You need to print it at slow speeds to ensure that you do not jam the hot end. Another important thing to pay attention to is that setting a higher infill value with TPU parts will lead to stiffer 3D printed parts, and vice versa.

Recommended: The Best Flexible Filaments for 3D Printing


What is the Strongest 3D Printer Filament? (2023) – Clever Creations (6)

Image: 3DGence

PolyetherEtherKetone (PEEK) is the strongest 3D printer filament with a tensile strength of about 7250 PSI. PEEK is a strong filament with about 50% more strength than Polycarbonate. It makes PEEK a high-performance thermoplastic suitable for some very particular high-end applications.

PEEK also has an excellent strength-to-weight ratio. Its Young’s modulus is like that of a human bone, making it apt for medical applications. Its lightweight nature and high-temperature resistance are useful in aerospace industries. PEEK is used to print structural components and heat shields in these fields.

PEEK filament is a high-temperature thermoplastic and needs a specific printing setup to print well. It is also expensive compared to other thermoplastics and not easily accessible.

Usually, PEEK is reserved for industrial applications. However, with the right 3D printer and proper setup, you can achieve great results with PEEK at home.

Composite Materials

Carbon Fiber

What is the Strongest 3D Printer Filament? (2023) – Clever Creations (7)

Carbon fiber is used to add strength to various 3D printer filaments, like PLA, Polycarbonate, PETG, and Nylon. The resulting material consists of filament with short fibers of carbon ingrained. This increases hardness and abrasion resistance. Compared to parts printed with regular filament, carbon fiber filament parts can be made more lightweight and with increased stiffness.

Carbon fiber-infused Nylon filaments have high hardness. But the tensile strength remains like a regular Nylon filament. The increased hardness makes it suitable for machine parts and structural components. Typical applications would include 3D printed drone frames, tools, and support structures.

Because Carbon fiber has a high hardness and you will need stainless steel or a ruby-tipped nozzle. Regular bronze 3D printer nozzles will wear out in no time.

It is also recommended to print carbon fiber-infused filament at low speeds. This reduces the chances of clogs and offers a more consistent print quality.

What is the Strongest 3D Printer Filament? (2023) – Clever Creations (8)

PRILINE Carbon Fiber Polycarbonate 1KG 1.75 3D Printer Filament,...

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Polycarbonate Blends

As stated earlier, Polycarbonate has excellent toughness and is resistant to impact loads. It is not easy to 3D print, however. This is why many users cannot take advantage of the material’s properties. To overcome this, filament manufacturers introduced Polycarbonate composite filaments blended with ABS materials.

In the Polycarbonate study mentioned above, researchers also tested a PC-ABS blend filament. They found that it has a significantly higher tensile strength of upwards of 6000 PSI, compared to ABS’s 4500 PSI. This means that the parts produced using PC-ABS filament can deform more before failure, giving PC-ABS filament an edge over regular ABS filament.

Polycarbonate also increases the part’s chemical and high-temperature resistance. This blend is an excellent alternative if you need high-strength parts that are easy to print.

What is the strongest 3D printer resin?

3D printer resin is inherently brittle and breaks easily under the slightest loads. A lot of resins are catered toward 3D printing miniatures and other small, high-detailed models that do not require a lot of strength. Some resins, like tough and engineering resins, are specifically formulated for high-strength applications.

In his video experiments, Stefan from CNC Kitchen conducted tests on various resin materials. He found that Siraya Tech Blu tough resin exhibited increased toughness properties. The strength of the printed parts was like ABS and PETG 3D prints with excellent layer adhesion.

(Video) Recycle your failed 3D prints! Make new filament at home.

Regardless of which strong 3D printing resin you choose, you will need the best resin 3D printers to get the highest-quality 3D printed parts.

Frequently Asked Questions

What is the most durable 3D printing material?

The most durable 3D printing filament is polycarbonate. It has a high degree of toughness and resistance to wear, making it perfect for use in a wide range of applications. It also has a high resistance to impact, and is resistant to UV rays, making it ideal for use in 3D printing applications that require durability and toughness.

What filament is stronger than PLA?

There are a few different filaments that are stronger than PLA. One of the most popular is PETG, which is a strong and durable plastic that is ideal for prototyping. Polycarbonate and PEEK are also both very strong materials that are often used for industrial applications.

Which is stronger, PETG or ABS?

Comparing PETG vs ABS, if we’re talking about overall filament strength, then PETG is the stronger 3D printer filament. It has a higher ultimate tensile strength and lower Young’s Modulus (which measures rigidity), meaning that it can resist external forces better. So if you need a material that can withstand a lot of wear and tear or impact, PETG is the better choice.

Is ABS or PLA stronger?

PLA is a stronger 3D printer filament than ABS. However, the lower melting temperature of PLA makes it unsuitable for some applications. PLA is also more brittle than ABS. Depending on your application, one or the other may be better suited.

For example, if you need a strong, rigid material that can withstand high temperatures, PLA wouldn’t be a good choice. On the other hand, if you need a material that’s easy to work with and doesn’t require high temperatures to melt, PLA would be a better option.

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Is PLA or resin stronger?

Parts that are printed with popular 3D printer filaments, like PLA, ABS, PETG, and Nylon are nearly always stronger than those printed with resin. Not only do they have higher tensile filament strength, but they also are more resistant to impact.

Resin 3D prints are notoriously brittle, and unless you are 3D printing with specially formulated strong resin, you will find that your FDM printed parts have higher strength.

Recommended: Resin vs Filament 3D Printers: What’s the Difference?


The studies mentioned above and test results prove that PEEK is the strongest 3D printer filament. It has an excellent strength-to-weight ratio and is suitable for high-performance applications. It is expensive and not easily accessible, limiting it for special industrial applications.

Polycarbonate, Nylon, and composite filaments like Carbon fiber-infused filament are the other alternatives. They show a high level of strength for many applications. These strong filaments have excellent stiffness and toughness while printing with relative ease. They’re more suited toward prosumer applications and are available in various mixes.

Which one do you think would give you the best strength for your applications? Let us know your experience with these filaments. If you have anything else to add, feel free to comment below.

(Video) What are The BEST 3D Printers? | After 3 Years of Testing Here’s My FAVORITES!


Which 3D filament is the strongest? ›

Polycarbonate (PC) delivers high tensile strength along with high impact and heat resistance. It's widely seen as one of the strongest 3D printing filaments.

Is PLA or PETG stronger? ›

The main differences between the two are their properties, applications, and material costs. PETG is stronger and more resilient than PLA. PLA, on the other hand, is widely used as FDM/FFF filaments because of its better melt and cooling properties. In terms of cost, PETG is more expensive than PLA.

Is ABS or PETG stronger? ›

PETG is stronger, more durable, and it prints better. It's also available in a wide variety of novelty and composite filaments. ABS is only necessary if you absolutely need its temperature resistance or its ability to be glued and painted. Otherwise, it's difficult to justify the printing difficulties involved.

Is 100% infill always strongest? ›

While the strongest infill percentage is 100%, this is rarely worth using. It does not add much strength compared to lower infill percentages and significantly increases print times. Instead of using a 100% infill percentage, a 40-60% infill density offers great results at lower 3D printing costs.

What filament is stronger than ABS? ›

PLA and ABS are both thermoplastics. PLA is stronger and stiffer than ABS, but poor heat-resistance properties means PLA is mostly a hobbyist material.

What filament is stronger than PLA plus? ›

PETG, on the other hand, offers a good balance between tensile strength and impact strength. It has much better impact resistance than standard PLA and similar impact resistance to PLA+.

Why is PETG so hard to print? ›

The most common reason for PETG parts to warp or lift during the print is due to insufficient bed adhesion or an incorrect nozzle height. If the first layer of extruded plastic is not sticking to the bed, a small amount of residual stress will be enough to lift the part off the bed.

Will PETG melt in a hot car? ›

If PETG is deforming in a hot car, you should reconsider where you're buying it from: proper PETG should be good up to at least 70°C (160°F), and more commonly 90°C (195°F). @Mark not really: it holds shape up to 90 °C, but it loses strength much earlier. 70 °C is about the max for maintaining physical strength.

What is PETG best for? ›

PETG is best known for its durability and strength, and the plastic is resistant to high temperatures, UV rays, water, chemical solvents, and more. All of this makes PETG an ideal filament material option for printing parts that will exist in harsh environments or have to undergo a lot of physical stress.

Does PETG crack easily? ›

If you're transitioning to PETG from PLA, you may find that PETG cracks rather easily. While PLA benefits from large amounts of cooling, PETG can suffer if it's cooled too quickly. If print layers begin to separate or crack, reduce the fan speed.

Can you eat PETG? ›

As a raw material, PETG is considered food-safe. This means that there are no toxic chemicals or ingredients in the pure polymer that will contaminate food or pose a danger to humans.

Does PETG break easily? ›

PETG is prone to being brittle if you apply too much cooling. Ideally, print PETG with no cooling for best strength.

What is the strongest fill pattern? ›

Triangular Infill: Triangular infill is the strongest infill pattern because triangles are the strongest shape. They are least likely to deform and provide the best support structure behind the walls of the part.

What does 0% infill do? ›

Infill density is expressed as a percentage and is sometimes referred to as infill percentage. 0% infill density is a fully hollow part, while 100% is a fully solid part. Visual parts like figurines and display prototypes tend to have a very low infill density, because they do not need to be strong.

What is the best filament for strength? ›

Polycarbonate (PC) filament

It is a high-strength material designed for use in harsh environments and technical applications. It has good heat deflection due to its high glass transition temperature and it is typically available in a version with improved impact resistance as well.

Why is ABS filament so cheap? ›

However, if you're looking solely at the raw material cost, ABS is probably cheaper than PLA. That's because ABS is so widely used in injection molding for making common, small parts, like interior car components or even Lego.

Is carbon fiber filament stronger than PLA? ›

When should you print with carbon fiber filaments? This type of filament is way stronger than a standard filament such as PLA or ABS. Furthermore, the quality of the surface is flawless and it is pretty lightweight, bearing in mind that their figures are very stiff.

Will PLA Plus melt in a car? ›

Drawbacks. PLA filament tends to deform or melt in high heat situations, making it impractical for parts that require heat resistance. This applies even to hot environmental conditions, such as a car dashboard on a sunny summer day.

Is PETG toxic to print? ›

In the 3D printing world, PETG is typically used in models that need good shock resistance or some flexibility, like snap-to-fit components. It's also a go-to material for food-related prints, as it doesn't deteriorate with water, isn't toxic, and is FDA-approved.

Can you make PLA stronger? ›

In terms of material strength, tests show that annealed PLA parts gain between 10 to 20% in strength with a bonus of becoming less brittle. For temperature resistance, annealed PLA also shows good results in comparison to other 3D printed annealed materials.

Does PETG go brittle? ›

My experience is that PETg prints are never what I call brittle, as in will not easily break apart. I did have one ugly failed PETg print once, which broke apart when removing it from the build plate, but I had accidentally sliced it with PLA parameters instead of PETg. I'm lucky that it did not jam in the extruder.

What are common problems with PETG? ›

PETG is very sensitive to print speed. Print too fast, and you'll have poor layer adhesion, extruder skipping, and low print quality, but print too slow, and you'll end up with deformed parts, stringing, and oozing. You'll have to find the sweet spot with the printer and filament you're using.

Does PETG warp over time? ›

PETG, also known as PET-G, is a super cool, specialized plastic that's used to make models with a 3D printer. Its thermodynamic nature allows you to print almost any design you could think of, but it can also easily warp if the conditions aren't just right.

What happens when PETG gets wet? ›

Sure, PETG does absorb some moisture and you'll get some extra stringing, but how bad could it be, and is PLA just generally fine to be kept out in the open.

Does PETG sink in water? ›

Water is 1g/cm3 Salt water is 1.025-1.05 ABS is 1.04 PLA is 1.25 PETG is 1.38 So PETG should sink and survive in saltwater.

Will PETG warp in the sun? ›

PETG and ASA are filaments for outdoor use

They are perfect to use in extreme conditions without deforming shape or appearance. Thanks to the high resistance to deformation these filaments remain solid in wind and sun.

How long does PETG last? ›

Fortunately, it is not as sensitive as PLA. A PETG filament can still be usable after a year of being in an open package.

Is PET stronger than PETG? ›

PET is the result of two monomers combining. PETG may involve these same monomers, but also includes glycol, giving it different chemical properties than PET. This means that PETG has better shock resistance and is better suited to higher temperatures.

Why is my PETG first layer not sticking? ›

Adjust nozzle distance

If the gap between the build surface and the nozzle is too large, the melted filament might not bond to the platform properly, which can lead to bad first layer adhesion. Unlike PLA, which benefits from a smaller Z-offset value, PETG actually prints better with a slightly bigger gap.

Why is my PETG popping during print? ›

Popping is usually due to moisture. I've had many new, vacuum sealed spools of filament have moisture in them. Try drying it. I'd recommend a dehydrator rather than an oven; with PETG I wouldn't go over 150 °F.

Can I print PETG on Ender 3? ›

The standard Ender 3 and Pro build surface, BuildTak, is the ideal surface for printing PETG with the Ender 3. The material allows you to have excellent adhesion while providing an easy way to remove the print due to its flexibility.

Is PETG stronger than acrylic? ›

PETG, on the other hand, is impact resistant and won't shatter like acrylic. It's also about five times stronger than acrylic, making it suitable to display in areas where customers pass by such as end caps, aisle violators, or header signs.

Can you drink out of PLA? ›

While PLA is safe to use for food and liquids, an article on reprage.com warns that many of the hot ends used for 3D printers may release materials that are not food safe. Using a stainless steel hot end is one way to prevent this problem. Also, most PLA is colored.

Can you drink out of a 3D printed resin cup? ›

First and foremost, not all 3D printing filaments are safe to use in contact with food or drink. Many filaments are made from plastics and other polymers containing chemicals that are harmful to humans when ingested, and the 3D printing process of heating those filaments doesn't sterilize them.

What can melt PETG? ›

Ethyl acetate, dichloromethane, methyl ethyl ketone (MEK), toluene, and cyclohexanone all work to dissolve PETG.

What temp is best for PETG? ›

PETG usually prints best in the temperature range of 220–260 °C. 3D printer company Prusa suggests a printing temperature of 230 °C for the first layer and a slightly higher temperature of 240 °C for the rest of the build. [3] Filament company MatterHackers recommends 245 °C throughout.

Is gyroid the strongest infill? ›

As we've seen, the gyroid infill offers one of the best strength to infill density ratios and can save users both time and money (in terms of material usage). The gyroid infill also offers a more interesting visual aesthetic than more traditional infill patterns, with a continuous geometry with no straight lines.

What is the fastest 3D infill? ›

For such applications, the lightning, lines, or zig-zag infill patterns are best because they give the fastest prints. Similar to “rectilinear” in other slicers, both patterns produce a 2D grid where only one axis is printed per layer.

What is the fastest infill 3D print? ›

Hexagon aka the honey comb

Best infill for strength vs material used. This shape is the most efficient infill and fastest to print, the goto infill for most things. It will save you material, time, energy and also offer high strength.

What layer height is the strongest? ›

Quite similar to the last samples, the strength of the 0.05mm to 0.2mm samples were the best with the medium layer height of 0.15mm being the strongest and then quickly plummeting with 0.3mm layers that were only able to bear half of the load and the 0.4mm layers basically holding nothing at all.

Why are my 3D prints so bad? ›

The most common cause is simply that the print just doesn't bond to the surface of the print platform. The filament needs a textured base in order to adhere, so to solve the issue you'll need to create a better bonding surface. An unlevel print platform can be another major issue.

Does more infill mean more strength? ›

Typically, the higher the infill density percentage, the higher the strength (as well as material consumption, weight, and print time) and the lower the flexibility. But the infill pattern can also affect strength depending on how the structure and layout of the lines disperse internal forces.

Is 50% infill too much? ›

What Is a Good Infill Density? In most cases, an infill density between 20 and 50% is ideal. Less than 20% results in flimsy parts whereas more than 50% begin to take too much printing time and use too much material.

Should I print 100% infill? ›

What Percentage Should I Use? For most “standard” prints that don't need to be super strong, we suggest using an infill density of 15-50%. This density percentage keeps print time low, conserves material, and provides okay strength.

Is PLA safe for food? ›

As a thermoplastic material, PLA is generally safe for food contact. In fact, a study from 1995 that put PLA material through several tests to determine how it breaks down found that it was “Generally Recognized As Safe (GRAS)” for food contact.

Is PLA Pro stronger than PLA? ›

Pro PLA has higher impact strength than ABS and Standard PLA with a heat resistance rivaling that of ABS! It is also slightly more flexible than Workday PLA.

Is carbon fiber PLA stronger than PLA? ›

When should you print with carbon fiber filaments? This type of filament is way stronger than a standard filament such as PLA or ABS. Furthermore, the quality of the surface is flawless and it is pretty lightweight, bearing in mind that their figures are very stiff.

What 3D print material is stronger than PLA? ›

PETG filament

It has a strong impact and abrasion resistance and can sustain higher temperatures compared to PLA. Because of its excellent properties and relatively low price, PETG is commonly used in 3D printing. It is a good engineering-grade material that can be used in place of ABS.

What type of 3D printer makes the strongest parts? ›

Which 3D printers print the toughest parts?
  • Markforged Mark One. The Mark One can print functional parts with a higher strength-to-weight ratio than aluminium. ...
  • Formlabs Form 2 (with Tough Resin) ...
  • Zortrax M200 (with Zortrax Z-ULTRAT)

How can I make my PLA prints stronger? ›

It involves using epoxy/polyepoxide to strengthen 3D prints. Epoxy coating is an insoluble surface coating made from a hardener and epoxy coating. It is solvent resistance, durable and tough, making it a suitable way to coat materials such as PLA, ABS, and SLA.

Is PLA or TPU stronger? ›

Another difference between TPU and PLA is its tensile strength, where PLA comes out on top. Although TPU offers better durability, polylactic acid is the stronger of the two 3D printing filaments. However, TPU prints have the upper hand when it comes to abrasion resistance.

Can you 3D print metal? ›

Titanium, steel, stainless steel, aluminium, copper, cobalt chrome, titanium, tungsten and nickel-based alloys are all available in powdered form for 3D printing, as are precious metals like gold, platinum, palladium and silver.

Can you 3D print car parts? ›

3D printers can create all kinds of car parts, and they work just as well as traditionally manufactured parts. There are plenty of reasons why people do this. They may want to personalize their car, make their car lighter, or just replace a part quickly without needing to pay an excessive amount for it.

Why is PLA not widely used? ›

The biggest problem with PLA is the very specific conditions needed in order for it to be properly composted. Instead of being recycled with regular plastic materials, PLA needs to be sorted separately and brought to a 'closed composting environment' as otherwise it contaminates the recycling stream.

What is the best structural filament? ›

Nylon is one of the strongest and most durable filaments on the market. It offers parts that can resist wear and tear and also offer great tensile strength.

Is 3D printing as strong as steel? ›

Tests showed that under certain conditions the final 3D printed stainless steels were up to three times stronger than steels made by conventional techniques and yet still ductile, the scientists report today in Nature Materials .

What filament is best for structural parts? ›

Polyamide or Nylon

It has a print temperature range between 210°C – 250°C. Nylon filament is an ideal selection for machine parts, gear and bearings, structural parts, dynamic load, mechanical components, tools, consumer products, toys, and more.

What infill is strongest? ›

Triangular Infill: Triangular infill is the strongest infill pattern because triangles are the strongest shape. They are least likely to deform and provide the best support structure behind the walls of the part.

What is the strongest 3D printed metal? ›

New titanium alloy has highest specific strength of any 3D-printed metal.


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