Tin free steel (TFS)
Coating structure of TFS
1.oil film | |
2.Chromium Oxids | |
3.Metalic Chromium | |
4.Blackplate |
Features of Tin free steel (TFS)
Excellent paint adhesion: TFS has excellent paint adhesion properties that far surpass those of ETP, allowing its use for making DRD cans and adhesive bonded cans.
Excellent heat resistance: High-temperature baking causes neither discoloration nor deterioration in material properties.
Excellent resistance to Sulphur Blackening: The metallic chromium in TFS has excellent sulphide resistance property when canning protein-rich foodstuff such as fish. TFS compensates for the expensive sulphur resistant lacquer.
Excellent filiform rust resistance: TFS has a excellent under film corrosion resistance.
Excellent alkali resistance: The coating in TFS is not amphoteric. Alkaline products such as detergents and dispersion colours can be packed in TFS with advantage.
The applications of Tin free steel
TFS are most frequently used for can tops, screw and lug caps, snap and press-on closures and shallow-drawn