There are two kinds of rubber powder: carboxymethyl cellulose and starch. When you say glutinous rice glue, it should belong to starch products, and it should be liquid, not flammable and explosive. Liquid rubber and powdered rubber powder, because they are difficult to identify, will be strictly investigated and should not be brought into the subway, and there are other chemical additives in them, which will interfere with testing equipment. A small amount can be tried, and it is best to have a complete package, unopened and with instructions.
In addition, there are many other regulations besides the prohibition of carrying dangerous chemicals in the subway. For example, it is not allowed to exceed the width and limit. Therefore, if your goods need a small amount of personal transportation, you should be able to bring instructions. But don't go to the subway in large quantities.