... seams on spiral and seam welded pipe.Primerless mastic tape readily conformable to odd-shaped pipe fittings, valves, flanges and ... to +70ºCSpecification Item NameOuter wrap tape Polyethylene tapes, pipe wrap polyethylene tapes,Aluminum tape, polyethylene adhesive tape, ... seams on spiral and seam welded pipe.Primerless mastic tape readily conformable to odd-shaped pipe fittings, valves, flanges and ...