How to distinguish plastic products with long service life when buying?

Of the two plastic buckets in my house, one used for almost 10 years and it was very good, and the other broke when it was used in the fourth year. The good one should be thicker. I don’t know if there are any other influencing factors, so I’m curious and have this question.

No best answer

Plastic products are polymer shrinkable materials, and objects will have the characteristics of thermal expansion and contraction. Plastics dissolve at a low temperature and have a greater response to changes in cold and heat. In addition, they are recycled materials with many internal impurities. The number of shrinkage will be reduced, resulting in weathering, and toughness will be poor, so it will crack after a long time.