1.Good storage stability;
2, the solvent in the coating is less harmful to the human body;
3.Inner coatings used for cans should comply with relevant national health standards;
4, convenient construction, simple operation, a good coating film is formed after baking and curing;
5. After the tinplate coating film is formed, it should have the required adhesion, hardness, impact resistance, chemical resistance, compactness and welding resistance together with the substrate to meet the process requirements of can and lid
6. After the canned food is sterilized and cooled, the coating film should have good appearance without falling off;
7.The tinplate inner coating film should not affect the flavor and color of the food;
8. The tinplate inner coating film and the substrate should be able to effectively prevent the corrosion of the contents.