28mm F-217® Three-ply Foam Liner

The 68WL28 is a 28mm F-217® liner made of three layers: a thin soft polyethylene foam core sandwiched between two clear layers of LDPE film. F-217 has become the industry standard due to its all purpose compatibility, resilient, compressible seal, cleanliness (no pulp dust) and economy. F-217 liners are taste and odor resistant, and have a low moisture transmission rate, meaning they prevent moisture from entering the bottle and affecting products. F-217 is a brand-name and tends to be used interchangeably with foam liner. However, F-217 actually performs better than a regular foam liner. Like the foam liner, this also does not create an airtight seal.