Required. Mineral water stickers are mainly used to firmly bond the mineral water bottle body and cap to ensure the sealing and hygiene of the mineral water in the bottle. The coating can effectively protect the self-adhesive from the influence of external factors such as ultraviolet rays, oxygen, water vapor, etc., extend the service life of the self-adhesive, and also prevent the self-adhesive from being damaged by friction and impact during transportation. Therefore, mineral water stickers need to be coated.