A high tack, tenacious, durable, peel and stick air/vapor barrier tape system used for sealing PVC and aluminum fin windows and doors; window and door openings; and as a full coverage air vapor barrier membrane. It is a high performance window and door flashing tape designed to be applied down to -20°F without the use of primer or mechanical fasteners on most substrates. A greener, cleaner building tape solution that does not contain VOC’s, HFC’s, nor CFC’s. It is non-toxic and non-allergenic.