There are several methods to test plastic paint buckets: 1. Airtightness test: After assembling the matching lid to fill the plastic paint bucket with 80% of water, the bucket should be dumped. The lid should not fall off or leak. 2. Push-down test: After assembling the matching lid to fill the plastic paint bucket with 80% of water, stack three buckets together, tilt them and let the buckets fall; the bucket lid cannot be opened. 3. Drop test: After assembling the matching lid to fill the plastic paint bucket with 80% of water, drop it at an inclined angle of 45 ° at the bottom of the bucket at a height of 80cm. The lid cannot be separated from the bucket, and the bottom of the bucket must not be broken. 4. Special test: After assembling the matching lid to fill the bucket with 80% of water, stack 4 buckets without deformation for 7 days. 5. Side leak test: Fill the bucket with 80% of water and leave to stand for 30 minutes without leakage; turn to the opposite side for 30 minutes without leakage.