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PET vs PETg Filament – What’s The Difference?

“PET filament”, “PETg filament”, “PETG filament” “PET-G filament” – all of these are common names used in 3D printing. Whilst at first glance “PET” and “PETg” may appear to be the same material, their (incorrect) interchangeable use by material companies and 3D printer users alike can be misleading. This article explains the difference between the two filament materials and summarises the benefits and disadvantages of both. 


PET (Polyethylene terephthalate)

  • Higher working temperature
  • More rigid
  • More brittle

If you are looking to get a print out that is rather rigid, PET 3D printer filament is the right material for this occasion. It has a slightly higher working temperature compared to PETG and is rigid, much like PLA. Although prints made with PET are hard, they are prone to be broken easily. So be aware if you know that your part is going to be subjected to a considerable amount of stress as the plastic would break rather abruptly, with not much sign of plastic deformation.

Did you know? Our ONE PET 3D Printer filament contains 100% recycled content made from waste PET plastic bottles.

 

PETg (Polyethylene Terephthalate Glycol)

  • Has glycol added (hence the “g”)
  • Slightly more flexible
  • Greater impact resistance
  • Absorbs more moisture (Dehydrating PETg before use is a good idea)

PETg can simply be thought of as PET with glycol added. The addition of glycol allows the material to be slightly more flexible, but not as much as TPU or TPE. Having a little more flexibility allows parts to have a greater tolerance to impact compared to PET.  Be careful of how you store your PETG as the addition of glycol means that the material absorbs more moisture. Ensure that you keep your PETg 3D printer filament in an airtight environment or dehydrate it before use.

 

Technical Data Comparison

 

 

 

 

 

 

 

 

 

 

 

 

 

Conclusion

Whilst PET and PETg plastic 3D printer filament may sound as though they are very similar, it is important to remember that they offer different properties – which should be compared when choosing the most appropriate material for your project.

To summarise – where our regular PETg has a better impact resistance, ONE PET boasts superior technical properties such as tensile strength, not to mention the environmental benefit of 100% recycled content. 

Both and PETg plastic 3D printer filament can be found in our shop

Recycling Failed and Waste 3D Prints into Filament: Challenges

In response to growing interest into the area of recycled filament and the regular enquiries we receive regarding failed/waste 3D print recycling, we thought we’d take the time to clarify our position – this article specifically will focus on the challenges preventing us offering such a service (currently). 

Do you accept 3D printing waste?

Can you recycle failed prints?

Will you recycle our PLA waste back into PLA filament?

The example quotes above are just an overview of the types of emails, calls and enquiries we receive on a daily basis. As a provider of 3D printing filament made from recycled plastic, we feel it is necessary to explain the current challenges of recycling failed & waste 3D prints into recycled 3D printer filament.


Environmental Need

Whilst at its core 3D printing is fundamentally less wasteful than traditional, subtractive manufacturing methods, academic research has found that “material sustainability is an issue that can no longer be ignored due to wide adoption of 3D printing”. The use of plastic as a feedstock has the potential to exacerbate the global plastic epidemic unless we can find a sustainable solution.

How Filamentive Produces Filament

Sustainability is at the heart of our business model. Where possible, recycled materials will be used to produce our 3D printer filament – we are the first filament brand to declare the recycled content of all 3D printing filament products, in accordance with ISO 14021.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


Challenges

Quality control – High quality filament is essential for high quality 3D-prints. Should we ever begin to accept returned 3D printing waste, it is very difficult – perhaps impossible – to verify that the returned plastic is entirely Filamentive material. There is variation between PLA formulas – let alone different materials altogether – and so if the waste-stream is contaminated, the filament extruded will unusable. Furthermore, an academic study found that were significant deteriorations in most mechanical properties after three recycling cycles” – which basically means that even if waste could be successfully separated, the filament quality would be very low, and in order to maintain mechanical properties, virgin material needs to be added which may negate the environmental benefit. 

Logistics – Plastic has a high volume-to-weight ratio which can make collections less efficient than the collection of other recyclable materials that weigh more. This is a major reason why plastic waste recycling rates are low in general. In a nutshell, this basically means plastic is expensive to transport which is barrier for customers and suppliers alike. Also, as we do not yet manufacture in-house, any waste would then need to be sent to one of our production partners which will incur transport emissions and perhaps offset some – if not all – environmental benefits. 

Economics – As with any business strategy, the financials need to be viable. Should customers not be willing to send their waste back at their cost, we would need to add the cost of waste collection and recycling into our product price. Whilst this would make sense for customers for others it would be unfair if they are not taking advantage of a service they are in-directly paying for.

Market viability – even if all the the above challenges were addresses, there are still many market factors to consider, such as:

  • Would we need to create a new brand/sub-brand for this new filament?
  • What price are customers willing to pay for such a product?
  • If filament cannot be created whom can we sell/send waste to? 

Plastic bottles being collected by our partner, Tridea

 


Moving forward

Despite the challenges, recycling 3D printing waste has long been an aspiration of ours and we’re continuously researching the viability of a waste management service. Offering such a service one-day will truly help us move one step closer to achieving a circular economy and reduce – if not eliminate – plastic waste within 3D printing. Until such a solution is achieved, we will still continue to be the sustainable choice in 3D printing by committing to:

  • Using recycled material (post-consumer and post-industrial) where possible 
  • Avoid the use of new, virgin polymers to reduce energy and demand for raw materials. 
  • Utlise plant-based bioplastics when there is no recycled alternative
  • Forming strategic partnerships with recycling companies to use their waste streams to produce filament
  • Using 100% recyclable cardboard spools to further reduce waste and increase the recyclability of our products/packaging

Hopefully this has been an interesting and informative read – if you have any questions about recycled filament or indeed anything related to Filamentive, please email us.

Filamentive Release 100% Recycled 3D Printer Filament Made From PET Plastic Bottles

Bradford, West Yorkshire, United Kingdom – February 6th 2019 – UK 3D printing filament brand, Filamentive, is proud to announce the release of a 100% recycled plastic filament made from post-consumer PET plastic bottle waste, in partnership with Tridea.

With a focus on sustainability, Filamentive is committed to greatly reduce the environmental impact of plastic in 3D printing. With an existing product portfolio of recycled materials – declared in accordance with ISO 14021 – the release of ONE PET signifies a tangible effort to reduce post-consumer plastic waste. 

The release of ONE PET is the outcome of a partnership with like-minded Belgium recycling business, Tridea, whose mission is based on the premise that there is no such thing as waste. Their ambition is to create value from European plastic waste, by transforming it into filament. This is done by working together with local collectors, recyclers and manufacturers.  

“In a world where less than 10% of plastic is recycled and in an industry where plastic is the material feedstock, we feel it is our duty to prioritise the use of recycled materials, and by working with Tridea, we are now making progress towards reducing post-consumer waste which has a considerable lower recycling rate than post-industrial waste streams”.

Ravi Toor, Founder & Managing Director of Filamentive

“Tridea provides an innovative and wholly novel means of utilizing waste, allowing us to multiply the lifespan of consumables by considering its lifecycle pre-consumer-consumer-post-consumer.”

Philippe Merillet, CEO & co-founder of Tridea

In addition to the environmental benefit of being a 100% recycled material, ONE PET has been extensively tested for 3D printing applications – it is stiff and tough with excellent interlayer adhesion. Where regular PETg has a better impact resistance, ONE PET boasts superior technical properties such as tensile strength.

ONE PET – along with other Filamentive 3D printer filament products – can be found online via filamentive.com, via the UK distributor, 3DGBIRE, and also via a growing network of Global Resellers.The filament is also available in seven colours, in both 1.75mm and 2.85mm diameters.

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Filamentive (https://www.filamentive.com/ – ravi@filamentive.com) is a market leader in sustainable 3D printing filaments. The company has experienced rapid growth and continues to address the questions surrounding 3D printing recycled materials. Its customers include a global network of makers, businesses and education clients.

Tridea (www.tridea.coinfo@tridea.be) believe there is no such thing as waste! They have developed a 360° platform to transform your waste into useful objects. By working together they will be able to raise awareness around plastic waste, reduce your waste tonnage and transform your waste into cool and useful products that you can recycle and reuse.

Filamentive Declare Recycled Content Certification – ISO 14021

Bradford, West Yorkshire, United Kingdom – January 22nd 2019 – Filamentive is proud to declare the recycled content of all 3D printing filament products, in accordance with ISO 14021.

Whilst at its core 3D printing is fundamentally less wasteful than traditional, subtractive manufacturing methods, the use of plastic as a feedstock has the potential to exacerbate the global plastic epidemic.

In response to the rising issue of plastic  – and the inevitable rise in plastic use because of 3D printing – Filamentive is committed to using a high-percentage of recycled materials in all products manufactured and sold, as well as committing to recyclable spools and packaging. The following products have been evaluated according to: BS EN ISO 14021:2016 – Environmental labels and declarations — Self-declared environmental claims (Type II environmental labelling)

 

“Due to FDM/FFF 3D printers using plastic materials as feedstock, unfortunately as 3D printing becomes more popular, plastic production and consumption will increase, causing the industry to exacerbate the global problem of plastic” states Filamentive founder, Ravi Toor. “Filamentive specialise in sustainable 3D printing filament materials. The company was founded to address to the environmental need to use more recycled plastics in 3D printing, and also alleviate market concerns over quality and long term sustainability”.

Filamentive was founded to challenge that very notion that recycled products are of inferior quality. The company recognises the that high quality filament produces high quality 3D-prints, which is why they commit to strict waste selection and manufacturing procedures to ensure no impact on user-performance.

“It is becoming evident that all consumers – from hobbyists to large businesses – are becoming increasingly environmentally-aware and so we will continue to set high targets for recycled content and the recyclability of our packaging” adds Ravi Toor.

Filamentive 3D printer filament products can be found online via filamentive.com, via the UK distributor, 3DGBIRE, or globally via a network of Resellers.

 

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Filamentive (https://www.filamentive.com/ravi@filamentive.com) is a market leader in sustainable 3D printing filaments. The company has experienced rapid growth and continues to address the questions surrounding 3D printing recycled materials. Its customers include a global network of makers, businesses and education clients.

Happy Holidays from the Filamentive Team!

Happy Holidays from the Filamentive Team! 2018 has been a tremendous year for us and we’d just like to thank each and every customer, supplier and partner!

In February, we made the switch from plastic to cardboard spools – reducing our plastic use and making recycling easier for our end-users. 

March saw us shortlisted for the prestigious 3D Printing Material Company of the Year award. 

In April 2018 we announced our Distribution and Reseller Agreement with 3DGBIRE. As a direct result of this, technology distribution giant Farnell element14 became stockists of the entire Filamentive range.

After a busy Summer we then joined our friends 3DGBIRE at the TCT Show 2018. This was a wonderful platform to see customers – new and old – and also forge new relationships.

Very recently, in December 2018, we announced Proto21 as exclusive Filamentive distributor in GCC region. As a result, Filamentive products are now available in UAE, Bahrain, Saudi Arabia, Oman, Kuwait, Jordan, Qatar.

What to look forward to in 2019

In January, we will be releasing, not one, not two, but THREE brand new 3D printer filament materials! 

  • ePLA – engineering-grade PLA filament – with the performance of ABS, 95°C heat resistance (after annealing) and the ability to print at speeds above 120mm/s – up to 90% recycled
  • PLA Matte – as the name suggests, surface diffuses light to give it a matte look, and creates a textures finish to reduce visibility of layer lines – 75% recycled material
  • ONE PET – 100% recycled filament made from post consumer PET waste. Developed by our partner Tridea – it is stiff and tough material with excellent interlayer adhesion, not to mention that it is available in a wide range of colours to suit needs and requirements.

Release dates and availability announced in due course 👀

2018 was a truly tremendous year and thanks to you we are well placed to have an even better year in 2019 and beyond. Everything we do is for YOU and we will always be committed to providing high levels of quality, sustainability and customer service.

PLEASE NOTE: We will be closed between Monday 24 December and Wednesday 2 January. All orders and emails received in this period will be dealt with upon our return on Thursday 3 January.

As a token of our appreciation, please use discount code xmas20 at checkout for 20% OFF ANY ORDER – Ends Friday 4th January 2019

Shop Now

 

A Merry Christmas and Happy New Year from all at Filamentive! 🎅🎄 See you in 2019! 

 

EASTER CLOSURE: We are closed on Friday 19th and Monday 22nd April 2019 for Easter, reopening as normal on Tuesday 23rd April 2019 - any orders/emails/enquiries will be processed on our return. Happy Easter to those celebrating! Dismiss