OPaL HDPE Opalene B6106

OPaL HDPE Opalene B6106 (also referenced as HDPE B6106 / HD B6106) is a high density polyethylene (HDPE) polyolefin blow-moulding grade from ONGC Petro additions Limited (OPaL). It is produced using Mitsui CX slurry polymerization technology and is positioned for high rigidity, very good processing, and excellent mechanical properties—a combination that makes it a strong fit for rigid packaging where stiffness, toughness, and stable production matter.

This grade is designed specifically for blow-moulded rigid containers, not as a broad “one resin for all HDPE applications” material. Buyers typically choose OPaL HDPE Opalene B6106 when they need consistent container performance across production runs, good mouldability at practical melt temperatures, and dependable mechanical strength for handling, stacking, and transport.

Manufacturer: ONGC Petro additions Limited (OPaL) (India)

Technical insights

OPaL HDPE Opalene B6106 is characterized by a high density and low melt flow, which together signal a resin engineered for rigidity and robust container performance.

• Melt Flow Index (MFI) 0.40 g/10 min (190°C/2.16 kg, ASTM D1238): A lower MFI generally indicates higher molecular weight, which is commonly associated with improved toughness and melt strength—useful for blow moulding where parison stability and wall-thickness control are important.
• Density 0.964 g/cm³ (23°C, ASTM D1505): Higher density HDPE typically correlates with higher stiffness and improved barrier/rigidity characteristics, supporting rigid container applications.
• Tensile Strength at Yield 32 MPa (ASTM D638): Indicates strong resistance to deformation under load—valuable for containers that must hold shape during filling, capping, and handling.
• Elongation at Break >500% (ASTM D638): Suggests the material can stretch significantly before breaking, contributing to toughness in real-world handling and drop/impact scenarios.
• Notched Izod Impact 350 J/m (23°C, ASTM D256A): Signals good impact resistance for everyday packaging abuse, especially in distribution.
• Flexural Modulus 1300 MPa (ASTM D790A) & Hardness 68 Shore D (ASTM D2240): Reinforces the “rigid container” positioning—stiffer feel, better panel stability, and improved stack performance.
• Vicat Softening Point 129°C (ASTM D1525) & HDT 80°C (ASTM D648): Helpful indicators for shape retention under elevated temperatures encountered in storage, transport, or warm filling environments (process-dependent).

Processing guidance: 160–200°C (recommended). Storage guidance: keep dry and dust-free, protect from direct sunlight/heat, and avoid storage temperatures above 50°C.

Applications

General-purpose rigid containers (up to 20 L): Opalene B6106 is suited for blow moulding of larger rigid containers where stiffness and dimensional stability are critical. It supports consistent container geometry and handling durability in industrial and general packaging.

Lubricant oil containers (up to 15 L): For lubricant packaging, buyers often prioritize rigidity, toughness, and reliable processing. HDPE B6106 is positioned to deliver strong mechanical performance for containers that face handling stress, stacking, and transport vibration.

Edible oil containers (up to 15 L): Opalene B6106 is used for blow-moulded edible oil packs where rigid structure and dependable production are key. Its density and modulus profile align with packaging that needs shape retention and robust performance.

Food and milk packaging bottles: OPaL lists bottles for food and milk packaging as a target use case for this grade. Where application and regulatory requirements apply, users typically validate suitability against the relevant standards and their own packaging design and processing conditions.

Comparable alternatives

If you are evaluating alternatives to OPaL HDPE Opalene B6106, the most defensible comparisons are within OPaL’s own HDPE blow-moulding portfolio, because naming consistency and application intent are clearer than many reseller listings.

• OPaL HDPE blow-moulding grades such as B5004: Often considered a close substitute category-wise (HDPE blow moulding), but direct equivalence to B6106 should not be assumed without matching the manufacturer TDS values (especially MFI/density and mechanical profile) to your container design targets.
• OPaL B6003 (documented in a food-contact declaration): Relevant as another OPaL HDPE grade with compliance context, but it is a different grade and should be treated as a separate option rather than a confirmed replacement.

How to choose between “comparable” grades: match MFI (processability vs melt strength), density/modulus (rigidity), and impact/tensile (toughness and handling) to your container size, drop requirements, and production conditions. B6106 is positioned toward rigid blow-moulded packaging where stiffness and mechanical strength are primary decision drivers.