Packaging, delivery and storage

HDPE LITEN is delivered in 25 kg PE bags or bulk loaded in trailer tanks. Bags are placed on pallets (net weight 1375 kg) and secured with PE shrink film to protect from damage and extend product lifetime. Pallets are designed to be stacked in two layers. HDPE LITEN must be stored in dry, ventilated, roofed warehouses and protected from direct sunlight. The recommended warehouse temperature range is between -20°C and +50°C. Product must be kept at least 1 metre away from any heat source. The recommended maximum storage time for HDPE LITEN in closed (sealed) bags under the above-mentioned conditions is 1 year. After longer storage periods, it is recommended to check material properties before processing.

When stored at temperatures below 20°C, it is recommended to condition the material at least 24 hours before processing in the production hall.

In case of surface moisture, the recommended drying temperature is between 70°C and 80°C for 1–2 hours.

Bussines Development Unit – Polyolefin Product Intelligence


• Provision of basic application-technical information on manufactured products.
• Consultation in the field of processability of HDPE LITEN and PP MOSTEN.
• Participation in trials at the customer site.
• Arranging of sample analyses aimed at determining optimal solutions.
• Measuring and interpretation of flow behaviour of polyolefin melt.
• Collection and handling of customer requirements.
• Arranging external tests in testing institutes and managing of product certifications for specific applications.
• Managing material specifications and other product documentation.
• Development and modification of product portfolio.

ORLEN Unipetrol RPA s.r.o. - POLYMER INSTITUTE BRNO, odštěpný závod

It is an organizational part of ORLEN Unipetrol RPA s.r.o. and has a statute of a research, development and manufacturing unit. Although the predominant volume of research contracts comes from the majority owner, the Institute is open to accepting projects from other domestic and foreign customers. Other sources of income represent production (colour concentrates, additive masterbatches, flame retardant compounds, filled materials and special composite materials), sales of polyolefins and revenue generated from the business information and consulting services.


• Structural analyses of polymer matrices.
• Analyses of plastics and composites’ chemical composition.
• Evaluation of processing stability of polymers.
• Determination of lifespan of polymer matrices by accelerated methods of artificial ageing.
• Optimisation of stabilisation compositions.

Determination of long-term mechanical properties by the use of standard tests or alternative methods.