Abstract: The carpet seaming tape activator disclosed comprises a hand-operated electric iron having a base with an insulated bottom. The base of the iron defines a tunnel, through which heat-activated adhesive tape for carpet seaming can pass. The heating element of the iron is disposed inside the base, so that the adhesive on the tape is melted while the tape is entirely enclosed within the iron. The hot tape is thus temporarily isolated from the padding beneath, thereby avoiding damage to the padding and to the backing on the underside of the carpet, as well as avoiding the tendency of the carpet to adhere to the padding underneath.