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The sheets are normally supplied in agricultural contexts. They have a role in accelerating crop growth and in protecting plants from bad weather. They are made of different types of cereals, while they are certified not to compete with the food chain.

The material bears the OK compost INDUSTRIAL label which guarantees to be biodegradable in an industrial composting plant. This applies to all components, inks and additives. In the agricultural sector, the foil is often intentionally left to decompose in the soil after its use.
Yes, it is! Weather Underground products combine compostability with functional water-repellance.




No, it will not. Tests have been made during rainy bike rides, a stormy open-air festival, in summer gardens under sprinklers. The rain cape will absolutely not decompose during rain showers.


The cape can be used actively for 2-3 seasons, when you treat it gently and always hang it up to dry after rain. 
The material thickness is deciding its durability as well as the time frame of its compostability. The capes are made of 40-50μm thick foil and are stronger than generic packaging film. In order to decompose in a short time frame, the material should not be thicker than this, otherwise it would behave more similarly to petrolium-plastic which decomposes after hundreds of years.



In soil, the material decomposes within up to 6 months, completely, and in industrial compost it takes only up to 12 weeks.

As mentioned before, they are made of different types of cereals, while they are certified not to compete with the food chain



If you have additional questions or did not find an answer, please send an email to info@weatherunderground.de













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