1.5-2.5kg/ m2。 PU adhesive aluminum honeycomb panel refers to a component which is bonded by coating PU adhesive on both sides of aluminum honeycomb panel, and the coating amount of PU adhesive used is generally 1.5-2.5kg/ m2. The coating amount of PU adhesive is related to the thickness and mechanical properties of the adhesive layer between plates. When using PU to bond aluminum honeycomb panels, attention should be paid to the uniformity and integrity of the adhesive amount to ensure the bonding quality.