Ceramic flowerpots can be glued with 502 glue when they are rotten. If 502 glue is exposed to air and touches a trace of water vapor, it will quickly polymerize and cure through catalysis, so it is called instant adhesion.

Extended data:

The chemical molecular formula of adhesive 502 is CH2 = C(CN)- Chief Operating Officer -C2H5, colorless and transparent, low viscosity, flammable liquid, one component, solvent-free, slightly irritating, volatile, volatile and weakly tearing.

502 glue has certain toxicity, but the toxicity will be reduced after curing, but 502 glue is a cyano compound after all, and it will produce toxic substances after decomposition. When it encounters moist moisture, it is catalyzed, rapidly polymerized, solidified and adhered. Under the catalysis of trace water in the air, the polyaddition reaction takes place, which quickly solidifies and sticks the adherend firmly.

Glue 502 is used to bond porous and absorbent materials, as well as steel, nonferrous metals, rubber, leather, plastics, ceramics, wood, nonmetallic ceramics, glass and flexible materials such as rubber products, leather shoes, soft and hard plastics.

References:

Baidu encyclopedia -502 glue