What is Solid Core ACP? What is the fundamental difference between it and regular ACP (PE core)?

A: Solid Core ACP does not refer to solid aluminum sheets, but to aluminum composite panels with a high-density, non-foamed solid polymer core (e.g., High-Density Polyethylene HDPE) or mineral-reinforced solid core. The key difference: its core is dense, continuous, and bubble-free, not a foamed PE honeycomb structure, offering superior flatness, rigidity, and impact resistance.