This listing is for 6"x 100' WS 20 that does not meet our color specification/requirement. The backing on this item is a bluish/ gray color and not white.  There are no performance issues; the membrane’s performance characteristics are still within spec. This will only be sold as long as there is inventory and will not be restocked. This is NOT returnable, FINAL SALE only. WHILE SUPPLIES LAST!

Polyguard WS20 WindowSeal 20 Mil Flashing Tapes are used to strip in or flash straight window frames, door frames, and other construction seams. WS20 is a self-adhering, self-sealing tape consisting of rubberized asphalt waterproofing coating, laminated to polyethylene film. The finished product is supplied in rolls, with an easy to remove film release liner. WS20 is available in 20 mil thickness and a variety of roll sizes. WS20 is AAMA 711 Verified. 

For superior adhesion, couple with our 650 WB Primer.