2. A piece of the same plastic can be used to repair the crack on the plastic bucket. When lit with fire, plastic liquid will flow down and the bucket to be repaired will be spilled dry. Then let the burning plastic liquid flow to the crack, and it will be integrated. After this treatment, it can be used for a long time.
3. If it is a thermoplastic barrel, the cracks can be repaired by plastic welding.
4. If it is thermosetting plastic, it can be bonded with glue such as 502. If the crack is not very big, you can also try painting egg white.
5. Polyethylene is resistant to glue, so it is recommended to try AB glue. But stick the same material on the outside. It's not just glue