Our high-performance polyester HDPE coated aluminum sheet should actually be called high-weather-resistant polyester HDP coated aluminum sheet. The film-forming material on the surface of the aluminum sheet is mainly high-weather-resistant polyester resin HDP, which has better weather resistance than ordinary polyester (PE) coated aluminum sheet.
The polyester resin used in the coating of our company's high-performance polyester HDPE coated aluminum sheet is mainly HDP resin, which does not contain aromatic intermediates and absorbs less than 10% of ultraviolet light, reducing the damage of ultraviolet light to the coating and improving the weather resistance of the coating.
Contact Us1. Comparison between HDP coating and ordinary polyester coating:
Comparison of UV absorption between HDP resin and ordinary polyester resin
Comparison of weather resistance between high performance polyester HDPE coating and ordinary polyester coating
2.Characteristics of high performance polyester coating:
3. Technical parameters of high performance polyester coated aluminum sheet:
| Serial number | Test items | National standard requirements | Test results | Detection basis |
| 1 | Chromatic Aberration | △ E≤2.0 | Higher than national standard | GB/T2241 |
| 2 | Glossiness | Deviation ≤10 | Higher than national standard | GB/T22412 |
| 3 | Coating thickness | Minimum 23μm | ≥25μm | GB/T22412 |
| 4 | Pencil hardness | ≥HB | ≥HB | GB/T22412 |
| 5 | Flexibility | ≤3T | ≤2T | GB/T22412 |
| 6 | Adhesion/Grade | Circle method | 1 | GB/T22412 |
| Cross-hatch method | 0 | |||
| 7 | Impact resistance | ≥20kg.cm | ≥20kg.cm | GB/T22412 |
| 8 | Boiling water resistant | No change in 2 hours | No change in 2 hours | GB/T22412 |
| 9 | Solvent resistance | 200 times without leaking | ≥200 times | GB/T22412 |
| 10 | Hydrochloric acid resistance | 2%HCL24h | No change | GB/T22412 |
| 11 | Alkali resistance | Saturated Ca(OH)₂24h no change | No change | GB/T22412 |
| 12 | Oil resistance | 20# engine oil has no change for 24 hours | No change | GB/T22412 |
| 13 | Salt spray resistance (2000h) | ≤1 level | No change | GB/T22412 |
| 14 | Stain resistance | ≤5% | Higher than national standard | GB/T22412 |
| 15 | Artificial weathering resistance(Aging time 2000h) | Color difference △E≤2.0 | △E≤2.0 | GB/T22412 |
| Light loss rate/level ≤2 | ≤2 | GB/T22412 | ||
| Other aging properties: Level 0 | Level 0 | GB/T22412 |
4. Application areas:
Building exterior wall decoration, interior wall decoration.
