SPECIFICATION – Prepainted Aluminum Coils (PPAL)
DANA STEEL manufactures Pre-painted Aluminum Coils by Color Coating Mill Finish Aluminum Coils in it’s Continuous Color Coating Line.
QUALITY STANDARDS:-
DANA STEEL has a modern in-house laboratory to conduct all necessary mechanical and Paint Tests such as:
TEST |
COLOR |
SALT SPRAY |
PENCIL HARDNESS |
T-BEND |
DRY FILM THICKNESS |
CROSS HATCH ADHESION |
SOLVENT RESISTANCE |
SPECULAR GLOSS |
MANDREL BEND TEST |
CHALK RESISTANCE |
COATING COMPARISON
S.N | PROPERTIES | PVDF | HIGH DURABLE POLYESTER | PUPA | SILICON MODIFIED
POLYESTER |
1. | COLOUR RANGE | GOOD RANGE | EXCELLENT RANGE | GOOD RANGE | GOOD RANGE |
2. | DURABILITY | OUTSTANDING | EXCELLENT | EXCELLENT | EXCELLENT |
3. | HEAT RESISTANCE | GOOD-EXCELLENT | GOOD | EXCELLENT | GOOD-EXCELLENT |
4. | ABRASION RESISTANCE | GOOD | GOOD | EXCELLENT | GOOD |
5. | GLOSS RETENTION | EXCELLENT | EXCELLENT | GOOD | GOOD |
6. | CUPPING | 6 MM | 6 mm | 6 MM | 6 MM |
7. | PENCIL HARDNESS | F-HB | H | H | H |
8. | CROSS HATCH | 100% passes | 100% passes | 100% passes | 100% passes |
9. | SALT SPRAY | 2000 hrs | 1000 hrs | 1000 hrs | 1000 hrs |
10. | WARRANTY | 15-20 YEARS | 10-15 YEARS | 15 YEARS | 5 YEARS |
11. | UV RESISTANCE | EXCELLENT | GOOD | GOOD | GOOD |
12. | MEK DOUBLE RUB | GOOD | GOOD | GOOD | GOOD |
13. | IMPACT TEST | GOOD | GOOD | GOOD | GOOD |
14. | T-BEND | 0T/1T | 0T/1T | 0T/1T | 1T/2T |
15. | FILM | SOFT | SOFT/HARD | HARD | HARD |
16. | QUV B | EXCELLENT | EXCELLENT | GOOD-EXCELLENT | POOR / GOOD |