Detailed Product Description
~painted aluminum sheet metal is a kind of advanced building materials, e.g., internal and external wall, aluminum composite panel!
Color coated Aluminum coil details:
1) The types of color coated aluminum coil: PVDF (mainly), PE and FEVE
2) Thickness of total coating: PVDF: more then 25 micron; PE, more then 18 micron.
3) Paint: PPG or Nippon.
4) Interior diameter: 505mm
5) Width of color coated aluminum coil: from 800mm-1300mm, sheets are also available
Thickness of color coated aluminum coil: 0.20mm-1.22mm, sheets are also available
6) Color: as required.
7) Coating hardness: (pencil hardness) more than 2H
8) Impact resistance: no cracking and peeling (50kg/cm, ASTMD-2794:1993)
9) Flexibility (T-bend): no more than 2T
10) Remarks of Color coated Aluminum Coil: Specific requirement of alloy, temper or specification can be discussed at your request.
| item | Test item | Standard | Technical Standard | Tent Result |
| 1 | Color Difference | ECCA T3 | ΔE≤2.0 | ΔE≤1.0 |
| 2 | Gloss Difference | ECCA T2 | ≤10 | ≤5 |
| 3 | Coating Thickness | ECCA T1 | Two coatings Min 23µm | ≥25µm |
| Three coatings Min 30µm | ≥34µm | |||
| 4 | Pencil Hardness | ASTM D3363 | ≥HB | ≥HB |
| 5 | T—bend | ASTM D4145 | ≤2T | ≤2T |
| 6 | Adhesion | ASTM D3359 | Grade 0 | Grade 0 |
| 7 | Impact | ASTM D2794 | ≥50kg.cm | ≥50kg.cm |
| 8 | Boiling Water Resistance | GB/T17748 | 2hr no change | 4hr no change |
| 9 | Solvent Resistance | ASTM D2248 | 200 times paint retaining | 500 times paint retaining |
| 10 | Acidity Resistance | ASTM D1308 | 5%HCL 48HRS no change | No change |
| 11 | Alkali Resisyance | ASTM D1308 | 5%nNaOH 48HRS no change | No change |
| 12 | Nitric acid Resistance | AAMA620 | ΔE≤5.0 | ΔE≤5.0 |
| 13 | Oil Resistance | ASTMD1308 | 30#oil 48hrs No Change | No change |
| 14 | Salt Spray Resistance | ASTMB117 | 4000hrs≤Grade 1 | No change |
| 15 | Abrasion resistance | ASTMBD968 | ≥5L/µm | ≥5L/µm |
| 16 | Contamination Resisyance | GB/T9780 | ≤5% | <5% |
| 17 | Color retention | GB/T16259 | 4000hrs ΔE≤2.0 | 600hrs ΔE≤2.0 |
| 18 | Gloss losing level | 4000hrs≤grade 2 | 4000hrs≤grade 2 | |
| 19 | Chalking | 4000hrs No Charge | 4000hrs No Charge |
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