Abstract: Manufacture of an article incorporating a thermosetting-powder surface-coating includes bonding a component to the article to the coating by contacting the melted powder with the component before curing takes place, and maintaining it in contact through curing. In a glass architectural panel, an aluminium foil is bonded in this way to a polyester/triglycidylisocyanurate powder coating on the silane-primed back of the facing glass; the metal foil is backed by a plastics or rubber open-cell material to enhance resistance of the glass to impact, and also, together with the foil, resistance to thermal shock. The coating includes pigmentation to give the effect of colored glass, or is clear to allow the contact-surface of the metal to show through; further decorative effect is obtained by pigmentation variation in the coating and/or partial metallization of the glass back-surface.