Abstract: A seam tape for waterproof fabrics includes a thermoplastic adhesive layer and bonded to a waterproof film layer. Thermoplastic adhesive layer is preferably a polyamide adhesive having a melt index of at least about 200-400 and a melting temperature less than about 150° C. The waterproof film layer is a high strength thermoplastic material preferably a polyester such as polyethylene terephthalate. The waterproof film layer should have a thickness of from about 0.25 mils up to about 2 mils. This tape can be applied at higher temperatures than prior seam tapes without damaging the waterproof layer. Thus application speeds can be increased and costs reduced. Further this eliminates any need to post treat crossover seams.