(1) The thickness of the board is different

The thickness of the interior wall aluminum composite panel is generally 3mm. The thickness of the outer wall aluminum composite panel should not be less than 4mm.

(2)The thickness of the coating on the normal use surface is different.

Generally, the paint film thickness of the interior wall aluminum-plastic panel will be less than 15 microns, and the paint film thickness of the exterior wall panel is often above 25 microns, so that the weather resistance will be better;

(3)The coating material is different

The interior wall of the aluminum-plastic panel is coated with a polyester coating or an acrylic coating. The coating of the outer wall aluminum composite panel is generally coated with a fluorocarbon coating or a polyester coating.

(4)The thickness of aluminum foil is also different

In addition, our country also has relevant regulations, the thickness of the outer wall board is not less than 4MM, the thickness of the aluminum foil is not less than 0.5MM, the thickness of the inner wall board is not less than 3MM, and the thickness of the aluminum foil is not less than 0.2MM.