Various barrier technologies have been historically used in high-density polyethylene (HDPE) containers to enhance their chemical resistance and create an effective barrier that prevents the migration of gases, liquids, and chemicals, including fluorination (in-mold, post-mold, plasma), co-extrusion, and barrier resins. 

As the regulatory framework and customer preferences around barrier technologies used in HDPE containers evolve, manufacturers of plastic packaging products are increasingly looking for innovative barrier technologies that provide similar protection against migration while maintaining or increasing recyclability and functionality. Innovations include biodegradable coatings and enhanced biopolymers that can be applied to HDPE containers to achieve comparable barrier performance. These solutions are particularly attractive to customers aiming to meet their sustainability goals without compromising on product protection.