China Wooden Grain Aluminum Coil /Sheet/Panel with PVDF Coating, Find details about China Woodgrain Aluminum Coil, Woodgrain Pattern Aluminium Coil from Wooden Grain Aluminum Coil /Sheet/Panel with PVDF Coating
Item | Test Item | Standard | National standard | Test Result |
1 | Color Difference | ECCA T3 | E≤ 2.0 | E≤ 1.5 |
2 | Gloss Difference | ECCA T2 | ≤ 10 | ≤ 5 |
3 | Coating Thickness | ECCA T1 | Two layers Min 23um | ≥ 25um |
Three layers Min 30um | ≥ 34um | |||
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 | ≥ 50 kg/cm | ≥ 50 kg/cm |
8 | Boiling water Resistance | GB/T17748 | 2h No Change | 4h No Change |
9 | Solvent Resistance | ASTM D2248 | 200 times paints remaining | 500 times no break |
10 | Acidity Resistance | ASTM D1308 | 5%HCL 24hrs no change | No change |
11 | Alkali Resistance | ASTM D1308 | 5%NaOH 24hrs no change color Δ E≤ 2.0 | No change |
12 | Nitric acid Resistance | AAMA620 | E≤ 5.0 | E≤ 5.0 |
13 | Oil Resistance | ASTM D1308 | 20# oil 24hrs no change | No change |
14 | Salt Spray Resistance | ASTM B117 | 4000hrs≤ Grade 1 | No change |
15 | Abrasion resistance | ASTM D968 | ≥ 5L/um | ≥ 5L/um |
16 | Dirt Resistance | GB/T9780 | ≤ 5% | < 5% |
17 | Color retaining | GB/T16259 | 4000 hrsE≤ 4.0 | 4000 hrsE≤ 3.0 |
18 | Gloss weaken Level | GB/T16259 | 4000 hrs ≤ Grade 2 | 4000 hrs ≤ Grade 2 |