Fi-Cell technology, which is also suitable for certain aseptically-packaged products, uses a process that produces monolayer bottles with a smooth inner and outer wall surface. (Other foamed bottle technologies require an overmolded bottle to achieve a similar result.)
The technology is significant for carbonated beverage applications that require a smooth inner wall for an accurate fill. Fi-Cell bottles have smooth inner wall which prevents production of underfilled bottles.
The Fi-Cell process also produces a visually-exciting metallic finish without the use of expensive metallic colorants, helping companies create strong shelf impact for their brand.