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Nordic Clays Bio-Clays+

Together with Nordic Clays, Rodenburg developed the Bio-Clays+. To be used for both of their handheld and flexible clay thrower TrapMaster. The Bio-Clays+ are eco-friendly and made of a biodegradable material, which means they are expected to biodegrade in nature within 6 years and leave no “trash” in nature.

The challenge

Clay targets, commonly used in shotgun sports like trap and skeet shooting, are typically made from non-biodegradable materials such as pitch and limestone. The environmental impact arises from spent targets accumulating in shooting ranges. To enhance sustainability, there’s a shift towards biodegradable alternatives made from materials like natural fibers or bio-based resins. These eco-friendly options aim to reduce environmental harm by breaking down over time. The challenge was to develop a eco-friendly, biodegradable solution, which is also suitable to be used in hot climates and resist a high temperature.

The solution

The Bio-Clays+ are made of a biodegradable granulate based on reclaimed potato, grain, root and seed flour-based resources. (Also referred to as starch) In addition, 2% dye is added to the granulate to get the desired colour. The Bio-Clays+ can resist temperatures up to 55 degrees Celsius/130 degrees Fahrenheit and are recommended for all climates. By only weighing 23 g (0.81 oz) per clay pigeon, the pigeons are light and flexible. Compared to the traditional clay pigeons, the environmentally friendly pigeons provide a very lifelike and challenging escape. The pigeons are easy to see on their flight in the sky and splinter clearly when hit.

The clay pigeons do not only differ by their significant lower weight, but they are also made of a biodegradable material, which means they live up to the increasing demands for sustainability and environmental considerations. Basically, this means that you don’t have to pick up the pieces from the clay pigeons, which over time will fully dissolve in nature. It is expected that the clays will dissolve in nature within 6 years. (Dependent on environmental conditions such as moisture, temperature and microbial activity, you can read more here).

Below you can see the test report of the Bio-Clays+ / Bio-Clays 3.0, where we have tested the PAH-content of the clays, to make sure they live up to the government’s strict environmental regulations. PAH (polycyclic aromatic hydrocarbons) is a group of hydrocarbons, which poses a possible health and pollution problem that can have a negative impact on soil, wildlife, groundwater, and surface water.

Click here to see the PAH test report.

The Bio-Clays+ contain less than 0,2 mg PAH pr. kg. Therefore they fulfil the current environmental requirements, and they are future-proof against possible, future tightening of these requirements. To compare with the current regulations in Denmark, as an example we looked at “Skydebane Vest” in Hedehusene which requirement is: “Content of PAH (polycyclic aromatic hydrocarbons) in the used clay pigeons cannot exceed 10 mg/kg.” You can find their environmental approval, together with the rest of Denmark’s shooting ranges by clicking here.

To launch the Bio-Clays+ you can use the Nordic Clays TrapMaster, which is the handheld and flexible clay thrower.
You can read more about the TrapMaster here.



  • The clay pigeons flight path is true to nature and authentic.
  • No cleanup after a training session.
  • The Bio-Clays+ can resist temperatures up to 55 degrees Celsius/130 degrees Fahrenheit and are recommended for hot climates.
  • They are eco-friendly, since they contain less than 0.2 mg PAH pr. kg. (Read more under the tab “Documentation”)
  • They are made of a biodegradable material and are expected to dissolve in nature after 6 years.
    • Most traditional clay pigeons do not biodegrade, you can read more here.
  • The clay pigeons only weigh 21% of the traditional pigeons and takes up less “space” in nature.
    • During transport of our Bio-Clays+, CO2 emissions are up to 4.7 times lower compared to the traditional clay pigeons of 110g.
    • Nordic Clays can ship up to 75% more clay targets on a regular EU-pallet, compared to the traditional 110 g clay pigeon. (14400 versus 8250 clay pigeons.)


Rodenburg Bioplastics

Nordic Clays


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