How climate and UV radiation influences bale net strength

The level of UV radiation differs in different regions of the world. In Norway, it is lower than, for example, in Argentina, and in Mexico City it is definitely higher than in England. Accordingly, in these countries, the impact on the bale net, which is wrapped around the bales, is different if it is left for storage just in the field. This depends on different climatic zones. In addition, the environmental impact of the hay net may differ from the level of air pollution.

The initial tensile strength of the bale netting fabric is maximized. But after a while, under the influence of UV rays and other environmental factors, as well as due to the “load” from winding and holding the bale, this indicator decreases. When used correctly in temperate climates, the bale net will retain 50% strength after 12 months.


A decrease in the strength of the bale net can occur due to the high pressure of the packed crop. For example, straw is more “explosive” than hay, which we have already covered in another article. Therefore, it is very important to follow the recommendations for the number of net layers on the bale. In addition, in areas with high UV radiation, it is better to cover bales for long-term storage to reduce environmental impact.


The Polipak net contains a UV stabilizer. This ensures that at least 50% of the original tensile strength is retained after 12 months of outdoor storage.

To keep your bales strong and hold the feed securely for as long as possible, we recommend:

  • Store bales of the bale netting in their original packaging in a dry place. This will ensure that all their technical characteristics are preserved.


  • Wrap the bale with a sufficient number of net wraps. We have recommendations in this regard. This will reduce the likelihood of rupture during storage and transport. Be sure to check the actual number of wrappings.


  • Make sure your net-wrapped bale is not exposed to chemicals such as agrochemicals. They can negatively affect the strength of the package.