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Detectable polymers for
the food industry


Our solution for improvements

Safety through detectable high-performance compounds
Protect consumers, reduce potential contamination, and prevent damage to your image. In the food and cosmetics industry, even the smallest failure can have unforeseeable consequences. Foreign bodies introduced during the manufacturing process by processing machines represent a high risk for the manufacturer. Metal and X-ray detectors can be used to make contaminants visible. Plastics are particularly challenging for detectors but are increasingly used because of their unique properties. Metal detection of plastics is not readily possible, and X-ray detection is not sufficiently reliable due to insufficient density differences.

Our solution

With the use of selected fillers, the properties of the polymers are adapted so that they can be reliably detected by X-ray and metal detectors. The production of the compounds by compression molding allows a high filler content while maintaining good mechanical properties.

The individual adaptation of the recipes enables material properties that are perfectly matched to your process.

Improved X-ray

XD Material Series

With the aid of high-density mineral fillers, the overall density of the compound can be specifically adjusted. In this way, sufficiently high-density differences to the surrounding food or cosmetic product can be achieved, which enables reliable X-ray detection of the compounds – X-Ray Detectable.

Metal detection with simultaneous X-ray detection

Material Series DD

To be able to detect a polymer with the aid of a metal detector, it is necessary to give it properties which influence the electromagnetic field of the detector. This can be achieved by using magnetic fillers. The resulting increased density of the compound simultaneously enables X-ray detection – Dual Detectable.


The food and cosmetics industries require special polymer properties.
  • Outstanding mechanical properties

    High strength at low density - just one reason why high-performance polymers are often used as metal substitutes.

  • High heat resistance

    Whether hot or cold - high-performance polymers cover a wide temperature application range while maintaining good mechanical properties.

  • High chemical resistance

    Hygiene is of great importance in the food and cosmetics industries - regular cleaning and sterilization of polymer surfaces is no problem.

  • Low adhesion

    Thanks to the chemically stable structure, product adhesion to the polymer surfaces is greatly reduced.

  • Food conformity

    Our solutions consider the requirements of FDA and EU regulations

  • Moisture resistance

    The high-performance polymers used at STASSKOL (e.g. PTFE and PEEK) have no significant water absorption and are 100% resistant to hydrolysis, even in superheated steam applications.

2 mm samples of STASSKOL XD and STASSKOL DD

Application-oriented test

Every material development goes hand in hand with the characterization of material properties. With the support of our partner METTLER TOLEDO, a leading manufacturer of product inspection systems worldwide, detectability tests can be performed under conditions as close to reality as possible. In doing so, the test is not only performed in air, but inside a food product with a representative density.

Learn more about the test procedure here.

Our results

The results obtained demonstrate the reliable detectability of both solution strategies. The high filler content of the compounds enables the unambiguous detection of foreign bodies from a size of 2 mm (see picture) in the X-ray and metal detector. Depending on the surrounding product and acting product effects, the detection of even smaller foreign bodies is also possible.

Request free test sample cards here to be able to test our materials under your production conditions.

Industry comparison

Comparison with existing detectable materials
Existing commercial
Solution 1 -
Material series XD
Solution 2 -
Material series DD

Realistic test conditions

Especially in X-ray detection, the product surrounding the foreign body is of high importance, as it significantly influences the results. X-ray detectors detect contamination based on density differences. Ionizing radiation is attenuated more by a high-density material than by low density materials. This is also true for the wall thickness of the material through which the X-rays pass. A high wall thickness causes increased attenuation. Different degrees of weakening effects show up in the form of contrast differences on the grayscale images of the X-ray detector. These are analyzed and contaminated products are rejected.

To be able to look at all these influences in more detail, the following experimental setup is available:

Customised recipes

The perfect MATCH

We are aware of the advantages of our high performance polymers and are able to support you in the right selection of the matrix material. Moreover, we can customise the properties profile of the material for your application with appropriate additives.
Ask us – we are happy to advise you!
STASSKOL Customer satisfaction
High customer satisfaction in all areas
Tradition & Progress
There for you for over 100 years
Research & development
on our own, globally unique test bench
Julian Große-Segerath

Julian Große-Segerath

Germany, Austria, Switzerland

  • High-Performance Polymers


Wir beraten Sie gern bei der Auswahl des optimalen Hochleistungskunststoffes für Ihre spezielle Anwendung.