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Competence in engineering plastics

As a production company with innovative product solutions, SITRAPLAS is your industrial partner for individual compounds. At our company headquarters in Bünde, East Westphalia, we develop and manufacture high-performance plastic compounds.

Customers in the automotive, domestic appliance and electrical industries, among others, benefit from our tailor-made solutions worldwide. We offer you high-quality, unique compounds based on various base polymers, such as PC, ABS, ASA, PBT, PMMA and corresponding blends for your technical application.

Our solutions for your market

Find the right product quickly!

Looking for EN-Light, the TF series or Green Compounds? You will find what you are looking for in our product overview.

> 2.500


Our developers have done a great job. We can draw on a database of over 2500 recipes. This allows us to offer our customers the best possible solutions cost-efficiently, flexibly and quickly.

> 630


From consulting at the beginning of the project, the first formulation to production readiness at the customer's site - the highly qualified and experienced SITRAPLAS team is your contact. Our long-term customer relationships from various industries are based on intensive technology partnerships.

> 4.100 t


Due to our modular production processes, we supply plastic compounds from very small quantities to large tonnages. We guarantee short delivery times worldwide. Our process monitoring is precise and guarantees the greatest possible batch and quality reliability - even when scaling up to our production facilities.

Sustainability at SITRAPLAS

With individual plastic compounds from the GREEN COMPOUNDS series, our customers receive high-quality products made from sustainable or bio-based raw materials. The first-class compounds are used in various sectors: from the automotive industry to the household appliance industry.

Building block for more sustainable compounding
Production waste is an important building block for more sustainable compounding. That is why we collect and sort the waste so that it can then be ground up and used as a valuable raw material for our GREEN COMPOUNDS.

Reuse of 92% of plastic waste
Whether virgin materials or additives, materials from the internal raw material cycle or purchased regrind from post-industrial and post-consumer waste: In our production processes, all of these products undergo close quality controls.

Energy efficiency as a declared goal
Digital and detailed: We monitor the energy consumption of our processes, such as electricity, water and compressed air, on a daily basis so that we can intervene quickly if necessary. With this in mind, our entire compounding process is optimized for energy efficiency. We not only analyze energy consumption very closely. From the screw to the BigBag - here too, we identify sustainable solutions by checking which consumables can be dispensed with or used for longer. Wherever possible, we make processes paperless.

Calculate CO2 footprint
We calculate the CO2 footprint of our plastic compounds during product development. Based on the transparent environmental impact, customers make a well-founded and sustainable choice regarding their own product applications.

2023: GREEN COMPOUNDS saved 5,000 tons of CO2
(Estimate based on the use of secondary raw materials and/or other goods with biogenic components)



SITRAPLAS: Successful realization of a development solution in cooperation with Novoplast Schlauchtechnik

In cooperation with Novoplast Schlauchtechnik, a subsidiary of the Masterflex Group, SITRAPLAS has developed an exceptional...

SITRAPLAS sets standards in terms of sustainability: CO2 footprint calculation for plastic compounds

SITRAPLAS, the East Westphalian compounder for innovative technical plastics solutions, is now calculating the CO2 footprint of its plastic compounds...

SITRAPLAS: PTFE-free plastics for tribological applications

Tribologically optimized materials are ideally used to reduce frictional resistance. At the same time, they reduce noise development,...

SITRAPLAS presents a further development of SITRALON (PC)

SITRAPLAS, the East Westphalian compounder for innovative technical plastic solutions, presents a further development of the technically and functionally high-quality...

EN-Light: Transparent coloring for virgin and recycled materials sets sustainable standards.

SITRAPLAS has always stood for high-quality transparent colored compounds, which are now also available on a recyclate basis.

SITRALs (TPS) for flexible lighting systems

A TPE compound for the most diverse design applications in customer-specific material settings, such as color, transmission, Shore hardness, etc. A...

New flame retardant grades of the products SITRALOY (PC+ABS) FR and SITRALON (PC) FR

SITRAPLAS presents several flame-retardant grades. The East Westphalian compounder for innovative technical plastics solutions is thus supplementing its...

SITRAPLAS invests extensively in new machines and systems

SITRAPLAS, the East Westphalian compounder for innovative technical plastics solutions, is going on the offensive. With an investment of...

Joachim Boden takes over management of SITRAPLAS product development

Joachim Boden takes over the position of Head of Development at SITRAPLAS GmbH on 01.12.2022. The proven...

SITRAPLAS: Tribology seminar takes guests to beautiful Annaberg-Buchholz

This excerpt from our customers' feedback makes us very happy and allows us to look forward...

Maybachstr. 23
32257 Bünde

+49 5223 49 10 90


SITRAPLAS partners with you to produce individual resin compounds for state of the art product solution.


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