1975: 125 gauge made from PVC
1977: 115 gauge made from LDPE
1980: The first revolution, Mobil introduces 90 gauge X film, three-layer cast, co- extruded film made from LLDPE
1985: Mobil produces 80 gauge from LLDPE which becomes the industry standard
2000: The second revolution: Pinnacle Films introduces Apex cast, co-extruded film made from mLLDPE; 63 gauge becomes the new industry standard.
2009: All Apex films are now NanoLayer™