What kind of rubber should be used to make watch straps?
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What kind of rubber should be used to make the watch strap? It requires good physical properties, high tear resistance, and no spitting phenomenon.
Watch strap? Is it something similar to a bracelet? If so, silicone rubber should be used. However, ordinary silicone rubber does not have high tear resistance and needs to be selected with high tear resistance specifications. Materials that come into contact with the human body must be of medical grade, otherwise allergies and harmful substances may invade the body through the skin. Currently, the United States has relevant FDA standards, but it is not clear how domestic restrictions are imposed.