Borealis is a leading European plastomers supplier and innovator. Building on our proprietary technologies and exciting brands such as Queo™, we provide reliable solutions with added value. 

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Reliable solutions for specialty film, moulding and extrusion coating

The Borealis Stamylex family of polyethylenes offers security and reliability for a variety of applications, including surface protection films, tie resin manufacturing and healthcare.

The diverse and varying requirements of the specialty film, moulding and extrusion coating industries require polyethylene (PE) solutions that are able to deliver the highest quality, reliability and versatility. Thanks to the added advantage of supply security and reliability we offer, our partners in industry have come to rely on the real advantages offered by our Stamylex family of polyethylenes for a variety of applications, including surface protection films, tie resin manufacturing, and healthcare.

Broad application range built on our proprietary Compact® solution

The Stamylex trade name refers to a family of high quality linear PEs spanning the range from high density polyethylene (HDPE) to very low density polyethylene (VLDPE). Our grade slate includes 1-octene, 1-butene and propylene copolymers, manufactured using a high performance Ziegler Natta catalyst in Borealis' versatile Compact® solution polymerisation process. Stamylex polyethylenes exhibit superior mechanical and processing characteristics and have a long-established reputation as specialty polyethylenes of the highest quality and consistency. The flexible manufacturing process results in a broad product range which is used in a variety of specialty film, moulding and extrusion coating applications.

Film applications

Stamylex blown and cast film grades cover a density range from specialty VLDPE sealing polymers (910 kg/m3) to high stiffness homopolymers (960 kg/m3). Due to the solution process and the characteristics of the octene copolymer, our grades exhibit:

  • Excellent sealing performance
  • Superior impact, tensile and breaking strength
  • Excellent optical properties with consistent low gel and impurity levels

Moulding applications

  • Stamylex polyethylenes are particularly suited for more demanding, specialty injection moulding applications.
  • Narrow molecular weight distribution, high purity, excellent organoleptics and a broad combination of densities and melt flow indices all contribute to the use of Stamylex grades in applications such as mineral water packaging, household products and technical articles.
  • The unique molecular structure of Stamylex PEs reduces internal stresses in moulded articles, even with extremely high flow path to wall thickness ratios.
  • Products moulded from Stamylex exhibit no warpage, are free from flow marks, and boast an appealing surface gloss.

Extrusion coating applications

  • Stamylex grades for extrusion coating are characterised by a narrow molecular weight distribution and high purity, enabling the production of films virtually free from gels or other impurities and offering excellent organoleptic properties.
  • Our octene-based copolymers also provide an excellent combination of environmental stress crack resistance, toughness and puncture resistance.

Dedicated to innovation

With over two decades of in-house experience, we are a leading European supplier and top innovator when it comes to plastomers. Building on our proprietary Compact solution technology, we offer a broad and highly versatile range of solutions with built-in added value. In line with our stated mission to "Keep Discovering," we continue to expand our range of plastomers in order to meet the rapidly evolving needs of our partners in the specialty film, moulding and extrusion coating industries.


Enabling innovation with plastomers

We work together with our customers to develop and expand our already wide range of plastomers applications.

Plastomers markets around the world are exhibiting robust growth. Demand continues to rise for polymer solutions fulfilling sophisticated sealing, flexibility, compatibility and processability requirements in consumer products and packaging. At Borealis Plastomers, we work together with our customers to develop and expand our already wide range of applications. Best-in-class sealing performance in multilayer advanced flexible packaging and sound deadening panels for the automotive industry are just two examples of our experts' impressive track record in creating value for our partners through innovation.

Our Queo™ brand: bridging the gap between plastics and elastomers

Derived from the Latin "I can", the name Queo™ symbolises the key strength of this brand as an enabler. Queo products are a range of low density ethylene copolymers made possible by combining metallocene catalyst technology with the Compact solution polymerisation process. The comonomer used by Borealis Plastomers is octene. Queo plastomers are extending the properties of classic thermoplastic products towards the elastomeric properties of rubbers, while targeting a density between 860 and 915. Typical applications include:

  • Flexible packaging: Queo plastomers maximise sealing performance for clean as well as contaminated seal areas, even at reduced temperatures
  • Display film: add to toughness and shrink performance
  • Blown stretch cling layers: contribute to cling and low unwinding noise
  • Protective film: enhance adhesion and afford stain-free removal
  • Polypropylene (PP) film: improve low temperature impact resistance
  • Automotive sound deadening sheets: afford high filler loading at required mechanical properties
  • Flexible thermoplastic olefins (TPOs): offer free flowing pellets for continuous compounding with PP for use in automotive parts, appliances and mechanical goods
  • Calendared sheets in construction: optimise flexibility-toughness balance of sheets for use in halogen-free roof coverings, tunnel linings, geomembranes, coated fabrics
  • Wire and cable: provide carrier for halogen-free compounds for low voltage insulation and bedding, add flexibility in cross-linked compounds

A multifaceted team player

Our metallocene catalyst technology affords a highly efficient and consistent incorporation of octene comonomer into a polyethylene backbone. This results in low density and ensures precisely defined polymers with a range of unique performance attributes:

  • Sealing: lower peak melting points and narrower melting ranges providing controlled sealing performance and superior sealing through contaminations
  • Flexibility: flexural modulus similar to elastomers and thermoplastic behaviour without plasticizers or polar comonomers
  • Compatibility: exceptional compatibility with other polymers and elastomers to provide tailored attribute blending opportunities
  • Processability: free flowing pellets for continuous compounding; processable on conventional extruders
In addition to these dominant features, many other benefits of these unique catalysed products are also exploited in product design:
  • Outstanding clarity
  • Very low extractables
  • Exceptional toughness
  • Excellent flex fatigue
  • High filler acceptance
  • Efficient peroxide and silane crosslinking
  • Surface softness
  • Anti-slip behaviour

Queo plastomers: value and diversity in applications

As an innovative and reliable provider of plastomers solutions, we have further consolidated our leading European market position with our two main plastomers product families, Queo and Stamylex. The unique combination of attributes offered by Queo plastomers makes it possible to improve your existing product offer, reduce costs, and expand into new end uses and markets. Queo plastomers add value to a wide range of film, extrusion and moulding applications. In many applications, our Queo plastomer attributes have been demonstrated to actually exceed the requirements. As a result, Queo plastomers are extensively used as blend partner, offering the opportunity to tailor the performance to cost balance of finished articles.