A headliner assembly (10) includes a layer of core material (16), a binding agent (26) adjacent to the core material (16), a first layer of chopped fiberglass (14) adjacent to the binding agent (26), a scrim (20) adjacent to the first layer of chopped fiberglass (14), a catalyst (38) adjacent to the scrim (20), a cover stock (22) adjacent to the catalyst (38). The catalyst (38) and the binding agent (26) are mixed together and impregnate the core material when pressure is applied to the headliner assembly (10), thereby resulting in a rigid headliner assembly. A method of forming the headliner assembly (10) is also disclosed.