Will the NBR rubber tube turn black after a period of time? This problem has been bothering many people. In fact, this is not surprising, because it is caused by the excessive moisture content in the air.1: Material of rubber hose   The material of the rubber hose is mainly a mixture of natural rubber and neoprene, which contains a large amount of resin. The structure of the rubber hose is shown in Figure 1: Analysis of the cause of the blackening of the NBR rubber hose after a period of time: If you use an NBR rubber hose, it is likely to cause the rubber hose to discolor or blacken. This is caused by changes or aging of the components contained in the rubber hose. Solution: Before using the rubber hose, make sure that there is no chemical contamination in the rubber hose; you must wear gloves when using it, and dry the rubber hose in time.2: Analysis of the reasons for the blackening of NBR rubber tubes after a period of time   1. Analysis of the reasons why the NBR rubber tube will turn black after a period of time. 2. Solution If the NBR rubber tube turns black after a period of time, it may be caused by the deterioration of the rubber material, the shedding of the pigment or the volatilization of the glue. In this case, you can try to replace the new rubber or wipe the substitute to solve this problem. 3. Precautions

3. Solutions   There are many reasons why the rubber hose turns black after a period of time. If you think it is caused by material quality problems, you can try to replace the rubber hose. NBR rubber hose is a kind of composite plastic pipe, which has good corrosion resistance and wear resistance, and can be used under higher pressure. But when the rubber hose is placed for a long time, some blackening will occur. Generally speaking, this is caused by changes in temperature, humidity, and other environmental factors, so appropriate measures should be taken to prevent this from happening. For example, rubber hoses can be cleaned regularly to reduce their exposure to water vapor or sunlight. Alternatively, measures such as preventing wet connections or polyurethane sealants can be used to prevent the rubber hose from being wet for too long.   In short, if you want to prolong the service life of the NBR rubber tube, then try to avoid moisture from entering it, and do a good job of drying. In this way, the above situation can be avoided, and the rubber tube will not produce peculiar smell during long-term use.