OPaL HDPE Opalene B5004
OPaL HDPE Opalene B5004 (also searched as Opalene B5004 / HDPE B5004 / OPAL HD B5004) is a high density polyethylene (HDPE) polyolefin blow-moulding grade from ONGC Petro additions Limited (OPaL). OPaL documents this grade under “HDPE Blow Molding” and states it is produced using Mitsui CX slurry polymerization technology.
B5004 is positioned as a natural colored blow-moulding resin with good processing properties, excellent ESCR (environmental stress crack resistance), and good external appearance. In practical terms, that makes it a strong choice for small rigid containers and bottles (up to 5 L) where processors need stable moulding, clean aesthetics, and durability against stress crackingespecially in regulated or performance-sensitive packaging.
Manufacturer: ONGC Petro additions Limited (OPaL) (India)
Technical insights
OPaL HDPE Opalene B5004 combines a low melt flow with a mid-to-high HDPE density, plus a standout ESCR valuea combination commonly evaluated for blow-moulded bottles that must resist cracking under chemical exposure and handling stress.
- MFI 0.40 g/10 min (190°C/2.16 kg, ASTM D1238): Low melt flow typically supports melt strength and parison stability in blow moulding, helping maintain wall thickness and bottle consistency.
- Density 0.950 g/cm³ (23°C, ASTM D1505): Indicates an HDPE designed for rigid container structure and shape retention.
- Tensile Strength at Yield 24 MPa (ASTM D638): Signals good load-bearing performance for bottles that must hold shape during filling, capping, and stacking.
- Elongation at Break >500% (ASTM D638): Suggests strong ductility before failure, supporting toughness in real-world handling.
- Notched Izod Impact 140 J/m (ASTM D256A) / Charpy 8.5 kJ/m² (ISO 179-1): Useful indicators for impact performance in distribution and use.
- Flexural Modulus 900 MPa (ASTM D790A) & Hardness 65 Shore D (ASTM D2240): Reinforces the grade’s rigid-packaging intent while balancing processability.
- ESCR >500 hours (ASTM D1693B, F50, 10% Igepal): A key differentiator for packaging exposed to surfactants, agrochemicals, and household formulations where stress cracking risk is higher.
- Vicat 121°C (ASTM D1525) & HDT 78°C (ASTM D648): Helpful for shape retention at elevated temperatures encountered in storage/transport (application-dependent).
Processing guidance: 160–200°C (recommended). Storage guidance: protect from direct sunlight/heat, store dry and dust-free, and keep storage temperature below 50°C.
Applications
Small rigid bottles and containers (up to 5 L): Opalene B5004 is designed for blow-moulded bottles where consistent appearance and reliable processing matter. It’s a fit for everyday rigid packaging formats that need good stiffness and durability without sacrificing moulding stability.
Pesticide packaging: Agrochemical containers demand resistance to stress cracking and handling abuse. With OPaL’s stated positioning on excellent ESCR, HDPE B5004 is commonly evaluated for pesticide bottles where long-term integrity and leak resistance are critical.
Surfactant and household chemical packaging: Surfactants can accelerate stress cracking in plastics under load. B5004’s ESCR-led profile makes it relevant for blow moulding bottles used for surfactant-containing formulations and similar household liquids.
Shampoo and cosmetic bottles: For personal-care packaging, processors care about external appearance alongside performance. OPaL documents B5004 for shampoo and cosmetic bottles, aligning with applications where aesthetics, consistency, and toughness are all decision factors.
Comparable alternatives
When comparing Opalene B5004 to other HDPE blow-moulding grades, the most defensible approach is to treat B5004 as an ESCR- and appearance-positioned grade for small containers, then compare against manufacturer TDS values for the exact bottle design.
- Opalene B6106: Another OPaL HDPE blow-moulding grade, but it is positioned for larger rigid containers (e.g., higher density/rigidity profile and different target sizes). It should be treated as a different fit rather than a direct substitute.
- OPaL B6003: A comparable OPaL HDPE grade with documented compliance context, but equivalence to B5004 is not confirmed without matching the full TDS property set and intended application.
Selection tip for buyers: if your bottle is prone to stress cracking (surfactants/agrochemicals, high hoop stress, aggressive handling), prioritize ESCR performance and validate with trials. If your priority is maximum rigidity for larger packs, a different HDPE blow grade may be a better match.
Common search variants
Also searched as: Opalene B5004, Opalene HD B5004, HDPE B5004, Opal B5004, B 5004, OPAL HDPE B5004 granules, HDPE blow molding grade B5004, HDPE dana.
Key Features
Specifications
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FAQs
Frequently Asked Questions
What is Opalene B5004 used for?
What makes B5004 different from many blow-moulding HDPE grades?
Is HDPE B5004 suitable for pesticide or surfactant bottles?
What does ESCR mean in simple terms?
What processing temperature is recommended for Opalene B5004?
Can B5004 be used for cosmetic and shampoo bottles?
How does B5004 compare with Opalene B6106?
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