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 |
