▁protect ive ▁and ▁special ty ▁pack aging ▁materials ▁for ▁a ▁wide ▁range ▁of ▁goods . ▁ ▁Br ands ▁ ▁B ubble ▁W rap ▁Initial ly ▁created ▁as ▁a ▁failed ▁wall paper , ▁B ubble ▁was ▁subsequently ▁used ▁as ▁a ▁green house ▁ins ulator . ▁Finally , ▁it ▁took ▁on ▁its ▁best - known ▁use ▁as ▁a ▁pack aging ▁material . ▁In ▁its ▁earliest ▁form , ▁B ubble ▁W rap ▁suffered ▁from ▁leak y ▁b ub bles , ▁but ▁by ▁the ▁mid ▁ 1 9 6 0 s ▁a ▁special ▁co ating ▁was ▁developed ▁to ▁prevent ▁the ▁b ub bles ▁from ▁losing ▁air . ▁In ▁ 1 9 6 9 , ▁Se aled ▁Air ▁reported ▁$ 4 ▁million ▁in ▁sales , ▁mostly ▁attributed ▁to ▁B ubble ▁W rap , ▁as ▁it ▁was ▁still ▁a ▁propriet ary ▁product ▁at ▁that ▁time . ▁ ▁Cry ov ac ▁Cry ov ac ▁is ▁a ▁thin ▁pl astic , ▁used ▁to ▁shr ink ▁or ▁wrap ▁objects . ▁Depending ▁on ▁the ▁type ▁of ▁job ▁required ▁of ▁it , ▁the ▁pl astic ▁comes ▁in ▁a ▁variety ▁of ▁thick ness ▁and ▁dur ability . ▁ ▁One ▁of ▁the ▁uses ▁of ▁Cry ov ac ▁is ▁to ▁wrap ▁food . ▁Once ▁wrapped , ▁most ▁of ▁the ▁air ▁in ▁the ▁package ▁is ▁removed ▁to ▁prevent ▁ox id ation ▁and ▁in hib it ▁the ▁growth ▁of ▁most ▁path og ens . This ▁process ▁also ▁gives ▁food ▁a ▁longer ▁sh elf ▁life ▁in ▁the ▁re fr iger ator ▁or ▁free zer ▁and ▁makes ▁free zer ▁burn ▁nearly