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The size of the aluminum composite panel is 1220 * 2440 * 4mm, with two layers of coating. The standard is GB/T17748-2008 "Aluminum Composite Panels for Building Curtain Walls". Surface quality requirements: No traces such as indentations, imprints, bumps, etc. are allowed; It is not allowed to have plastic on both sides exposed or missed; No ripples, blisters, scratches are allowed.
Other requirements:
A. The deviation of coating glossiness is ≤ 10, the surface pencil hardness is ≥ HB, the coating flexibility is ≤ 2T, and the coating adhesion is not lower than level 1;
B. Impact resistance ≥ 50kg · cm, without peeling off paint and cracks; Coating wear resistance ≥ 5L/ μ M; Coating stain resistance ≤ 5%;
The size of the aluminum composite panel is 1220 * 2440 * 4mm, with two layers of coating. The standard is GB/T17748-2008 "Aluminum Composite Panels for Building Curtain Walls". Surface quality requirements: No traces such as indentations, imprints, bumps, etc. are allowed; It is not allowed to have plastic on both sides exposed or missed; No ripples, blisters, scratches are allowed.
Other requirements:
A. The deviation of coating glossiness is ≤ 10, the surface pencil hardness is ≥ HB, the coating flexibility is ≤ 2T, and the coating adhesion is not lower than level 1;
B. Impact resistance ≥ 50kg · cm, without peeling off paint and cracks; Coating wear resistance ≥ 5L/ μ M; Coating stain resistance ≤ 5%;
