Core Tips: The performance of fireproof ACP should meet the following requirements
1. Surface pencil hardness
The surface pencil hardness of the aluminum composite panel should be greater than or equal to H.
2. Coating gloss deviation
The coating gloss deviation of ACP sheet should be less than or equal to 10.
3. Coating flexibility / T
The coating flexibility/T of the aluminum composite panel should be less than or equal to 2.
4. Coating adhesion a / grade
The adhesion of the ACP sheet should be 0, and the arbitration method should be grade 1.
5. Impact resistance
The impact resistance of the fireproof ACP should be greater than or equal to 50kg.cm.
6. Coating wear resistance
The wear resistance of the fireproof ACP / L / um should be greater than or equal to 5.

7. Coating acid resistance
The aluminum composite panel coating has no change in acid resistance.
8. Oil resistance of the coating
The oil resistance of panel coating should be unchanged.
9. Coatings and other alkali resistance
The ACP sheet coating should have no abnormality such as bubbling, bulging and chalking, and the color difference ΔE≤2.
10. Coatings resistant to nitrate
The coating should have no abnormality such as bubbling, bulging and chalking, and the color difference ΔE≤5.
11. Coating solvent resistance
The solvent resistance of the coating should not be exposed.
12. Coating stain resistance
Aluminum composite panel coating stain resistance /% should be less than or equal to 5.

13. Resistance to artificial weathering
The artificial weathering resistance of the panel should be mainly manifested in the color difference △E should be less than or equal to 4.0, the loss level/level should be not inferior to 2, and the other aging performance/level should be 0.
14 salt spray resistance
The salt spray resistance of panels should be no less than Grade 1.
15 bending strength
The bending strength should be greater than or equal to 120b / MPa.
16. Flexural modulus / MPa
The bending elastic modulus of the aluminum composite panel / MPa should be greater than or equal to 3.03104.
17. Through resistance / kN
The penetration resistance / kN should be greater than or equal to 8.0.
18. Shear strength / MPa
Aluminum composite panel shear strength / MPa should be greater than or equal to 25.0.

19. Peel strength / (N / mm)
The average peeling strength of the panel / (N / mm) should be greater than or equal to 140, the minimum value should be greater than 125.
20. Temperature difference performance
The temperature difference performance of the panel should be unchanged from the appearance, and the peel strength reduction rate/% should be less than or equal to 10. The coating adhesion should be a/grade, the cross-cut method should be 0, and the arbitration method should be level 1.
21. Thermal expansion coefficient / °C-1
Aluminum composite panel thermal expansion coefficient / °C-1 ≤ 3.00310-5.
22. Heat distortion temperature / °C
Aluminum composite panel heat distortion temperature / ° C ≥ 95
23. Hot water resistance
There should be no abnormality in the hot water resistance of the aluminum composite panel.
24. Combustion performance
Aluminum composite panel burning performance should be not lower than A2

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