R&D
SIBUR unveils advanced polymer for next-gen beverage bottle closures
The material was developed specifically to meet tightening demands from closure manufacturers,
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By ICN Bureau | June 26, 2026
SIBUR has unveiled a new bimodal high-density polyethylene grade, HD21550 CC, aimed at upgrading the production of 38 mm closures used across juices, dairy products, tea, and other beverage packaging.
The material was developed specifically to meet tightening demands from closure manufacturers, where processing stability on high-speed production lines, precise geometry retention, reliable sealing, and strict hygienic and organoleptic compliance are essential.
HD21550 CC is designed for use in both injection moulding and compression moulding, offering strong processability and consistent, high-quality mould filling during cap production.
At the core of the innovation is bimodal polyethylene technology, which combines smooth processing behaviour with high mechanical strength in the finished product.
In practical terms, that means caps produced with HD21550 CC are engineered to maintain their shape during transport and handling while delivering dependable sealing performance throughout the product’s shelf life—without affecting taste or aroma.
The company says the development also strengthens industrial self-reliance by enabling converters to use domestically produced feedstock on existing equipment. This reduces dependence on imported alternatives and helps cut logistics costs, while broadening material choices for packaging manufacturers.
