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About us

SITRAPLAS GmbH is a compounder of engineering polymers. The company offers customers from various industries a comprehensive range of application-specific plastic compounds.
At its production site in Bünde, East Westphalia , Germany, SITRAPLAS manufactures engineering plastic compounds based on various polymers and their blends. The company processes materials such as PC, PC+ABS, ABS, PMMA, PBT, and other polymers and polyolefins, which are modified according to customer-specific requirements.

Under brand names such as SITRALON®, SITRAMAC®, and SITRADUR®, these compounds are used in a variety of industrial applications, particularly in the automotive industry. Other application areas include the home appliance, electrical and electronics, and medical technology sectors. Products are supplied from the Bünde facility and through distribution partners to international production sites.

The company's success is based on an interdisciplinary team that oversees the development and production of plastic compounds. The team's expertise in process engineering, formulation, and colorimetry forms the foundation for developing application-specific materials with defined properties and quality requirements.

SITRAPLAS is certified to DIN EN ISO 9001:2015 and DIN EN ISO 50001:2018.

Together with our employees—a significant number of whom work in quality assurance and research and development —we are constantly working to refine our formulations and provide project-specific support to our customers.

The company’s processes are continuously reviewed and adjusted with a focus on quality and energy efficiency. The goal is to provide plastic compounds that meet defined technical requirements and take resource efficiency into account.
These approaches are reflected, among other things, in the GREEN COMPOUNDS product line and in the company’s participation in research projects addressing current industrial challenges.

Contact

SITRAPLAS GmbH
Maybachstr. 23
32257 Bünde
Germany

+49 5223 49 10 90

Company

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

© 2026 SITRAPLAS GmbH