2 mm sandwich panels, polyethylene core and composite aluminum skins.
Sandwich panel type with aluminum leathers and polyethylene core, very thin (2mm), not very light but definitely rigid.
Supplied already adhesive with transparent double-sided adhesive sheet in polyester 23 μm, Ph neutral, suitable for fine art, water-based, “environmentally friendly”. More about the 2 mm sandwich panels with polyethylene core and composite aluminum skins.