, ▁Se aled ▁Air ▁began ▁market ing ▁a ▁new ▁product ; ▁by ▁l amin ating ▁the ▁Air Cap ▁c ush ion ing ▁to ▁paper , ▁the ▁company ▁now ▁had ▁Mail ▁L ite ▁p added ▁sh ipping ▁en velop es . ▁ ▁In ▁ 1 9 7 3 , ▁Se aled ▁Air ▁began ▁market ing ▁P ly - Mask , ▁a ▁pressure - sens itive ▁poly eth yl ene ▁film ▁used ▁to ▁protect ▁del icate ▁surfaces ▁from ▁scratch es ▁and ▁the ▁company ' s ▁first ▁product ▁not ▁based ▁on ▁its ▁b ubble ▁technology . ▁The ▁same ▁year , ▁Se aled ▁Air ▁brought ▁their ▁market ▁to ▁Europe ▁by ▁acqu iring ▁ 1 0 ▁percent ▁of ▁Sib co ▁Universal , ▁S . A ., ▁a ▁French ▁manufact uring ▁firm . ▁Over ▁the ▁next ▁few ▁years , ▁Se aled ▁Air ▁bought ▁out ▁the ▁rest ▁of ▁Sib co ▁and ▁came ▁up ▁with ▁the ▁Se aled ▁Air ▁Sol ar ▁Bl ank et . ▁ ▁Ac quired ▁in ▁ 1 9 7 7 , ▁Inst ap ak ▁fo am ▁is ▁an ▁expand ing ▁poly ure th ane ▁fo am ▁that ▁comes ▁in ▁a ▁variety ▁of ▁dens ities . ▁U sed ▁primarily ▁for ▁sh ipping , ▁the ▁fo am - in - bag ▁process ▁m olds ▁to ▁the ▁shape ▁of ▁the ▁object ▁and ▁exp ands ▁to ▁fill ▁the ▁void ▁space ▁of ▁its ▁sh ipping ▁container . ▁ ▁Se aled ▁Air ▁acquired ▁Cell u ▁Product s ▁Co . ▁and ▁D ri - Loc ▁in ▁ 1 9 8 3 , ▁J iff