POLYESTER | PVDF | ||
Item | Technical requirements | Item | Technical requirements |
Thickness of coating film | ≥ 18 µm | Thickness of coating film | ≥ 25µm |
Gloss deviation | gloss<70, tolerance≤10% | Gloss deviation | gloss<70, tolerance≤10% |
gloss≥70, tolerance≤5% | gloss≥70, tolerance≤5% | ||
Hardness of pencil | ≥3H | Hardness of pencil | ≥3H |
Adhesion | no lower than class 1 | Adhesion | no lower than class 1 |
Flexibility | ≤2T | Flexibility | ≤2T |
Boiling water resistance | no change (2h) | Boiling water resistance | no change (2h) |
Color difference | ΔE≤2.0 | Color difference | ΔE≤2.0 |
MEK | ≥100 times | MEK | ≥150 times |