Packaging terms-Metal containers(21)

9.41 internal coating

A coating applied to the inner walls of metal containers/steel pails to prevent mutual contamination or corrosion of the contents.

9.42 rustproof lacquer

In order to prevent metal containers/steel pails from rusting, the paint applied on the outer wall of the bottom cover of the container is called: outer paint or anti-rust paint.

9.43 over lacquer

Clear coatings for protecting or printing surfaces on metal containers.

9.44 seam compound

Refers to the sealing material coated on the bottom of the barrel, the lid or the bottom of the tank, and the inner side of the lid groove, and plays a sealing role after the barrel or can body and the bottom, and the lid is crimped. It is composed of rubber, filler, resin, tackifier, etc., and can be divided into two categories: water-based and solvent-based.