Used for panels comprising a laminate of e.g. bitumised felt, polyurethane foam, particle board, pref. with the bar also bonded to the panel structure by a polyurethane resin sealant injected into slots in the bar/frame joint.WILFRIED LOCHTE...
expanded in situ on to the panel structure is claimed. Used for panels comprising a laminate of e.g. bitumised felt, polyurethane foam, particle board, pref. with the bar also bonded to the panel structure by a polyurethane resin sealant injected into slots in the bar/frame joint....