We can start from the content of diene. The weather resistance of EPDM rubber is related to those unsaturated double bonds that are dienes. As the content of dienes decreases, the weather resistance of EPDM rubber pipes increases gradually. So choose those hoses with low diene content when purchasing.
In addition, some fillers, such as carbon black, can be added to the raw materials when making EPDM hoses. Carbon black is very resistant to UV rays and can absorb UV rays to a certain extent. Moreover, the smaller the carbon black particles and the larger the amount of carbon black added, the stronger the weather resistance of the produced EPDM hose. However, this can only be used when producing black, dark rubber tubes.
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Post time: Jul-18-2022