Not the same at all, bonding is or can be used on metal and concrete and plasterboard, not normally for floating walls though and not near any areas of damp, hard wall is used for floating over celcon blocks mostly suitable on walls where there is a cavity and no water ingress. it will not adhere to metal or boardwork, Browning is very like hardwall but its easier damaged, its not used so much now but is still available..Never use any outside...