Holst Centre has long history in development of technologies for transparent flexible ultra-moisture barrier encapsulation of OLEDs and OPVs utilizing sheet-to-sheet (S2S) processing approach. Our partners successfully commercialized Holst Centre S2S encapsulation technology, but to further reduce cost and to make a major step towards mass produced ultra- moisture barrier, in 2012 Holst Centre set up an unique roll-to-roll pilot line with capability to deposit multilayer barrier coatings on foil. This tool combines PECVD deposition of inorganic coatings with a possibility to slot-die coat organics. These R2R barrier films are used within Holst Centre and by several partner companies of Holst Centre. Our contribution will discuss the latest R2R multilayer barrier development, performance and the end results from R2R encapsulated OLEDs.