Why do some PVC hoses blacken？
You may be eating a big watermelon in such a hot summer. Maybe you can smell the stink of PVC hoses. Presumably you are familiar with PVC hose, it is used in many places in our life, such as: home cleaning, home car washing, garden irrigation, gas and dust transportation and so on. But some of the newly purchased PVC hoses will be exposed to the sun for two days to find the smell of blackening and smelling. Why does this bad situation happen? Let’s analyze why some garden hoses are black and smelly from the raw materials of PVC hoses.
The raw materials of PVC hoses are fixed, such as PVC resin powder, paraffin, calcium powder, etc. A good PVC hose will not add too much calcium powder. The more calcium powder is added, the worse the quality. The less or not added, the higher the cost of PVC hose. When buying PVC hoses, try to buy those calcium powder added less is not too big taste, such PVC hoses will neither be black smelly nor expensive.
When purchasing PVC hoses, they must first smell, then fold the hoses to see their flexibility. Third, they should be exposed to the sun for a day. Fourth, they should be placed in the refrigerator to see if the hoses are hard. Fifth, they should be baked by fire.
After understanding the above regulations, you will buy a suitable PVC hose when you buy Garden hose.
